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Finding the Fourth Proportional to 85,810,464,295.90, 128,715,696,443.85 and 85,810,464,295.90

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Solution

The fourth proportional to 85,810,464,295.90, 128,715,696,443.85 and 85,810,464,295.90 is: 128,715,696,443.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,810,464,295.90 : 128,715,696,443.85 = 85,810,464,295.90 : x
  2. Step 2: Convert to fraction form
    85,810,464,295.90/128,715,696,443.85 = 85,810,464,295.90/x
  3. Step 3: Cross multiply
    85,810,464,295.90x = 128,715,696,443.85 × 85,810,464,295.90
  4. Step 4: Simplify right side
    85,810,464,295.90x = 11,045,153,674,016,891,863,040
  5. Step 5: Solve for x
    x = 11,045,153,674,016,891,863,040/85,810,464,295.90
  6. Step 6: Final answer
    x = 128,715,696,443.85

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.