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Finding the Fourth Proportional to 85,810,464,250.40, 128,715,696,375.60 and 85,810,464,250.40

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Solution

The fourth proportional to 85,810,464,250.40, 128,715,696,375.60 and 85,810,464,250.40 is: 128,715,696,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,810,464,250.40 : 128,715,696,375.60 = 85,810,464,250.40 : x
  2. Step 2: Convert to fraction form
    85,810,464,250.40/128,715,696,375.60 = 85,810,464,250.40/x
  3. Step 3: Cross multiply
    85,810,464,250.40x = 128,715,696,375.60 × 85,810,464,250.40
  4. Step 4: Simplify right side
    85,810,464,250.40x = 11,045,153,662,303,765,266,432
  5. Step 5: Solve for x
    x = 11,045,153,662,303,765,266,432/85,810,464,250.40
  6. Step 6: Final answer
    x = 128,715,696,375.60

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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.