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Finding the Fourth Proportional to 45,910,878.90, 68,866,318.35 and 45,910,878.90

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Solution

The fourth proportional to 45,910,878.90, 68,866,318.35 and 45,910,878.90 is: 68,866,318.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,910,878.90 : 68,866,318.35 = 45,910,878.90 : x
  2. Step 2: Convert to fraction form
    45,910,878.90/68,866,318.35 = 45,910,878.90/x
  3. Step 3: Cross multiply
    45,910,878.90x = 68,866,318.35 × 45,910,878.90
  4. Step 4: Simplify right side
    45,910,878.90x = 3,161,713,202,055,697.50
  5. Step 5: Solve for x
    x = 3,161,713,202,055,697.50/45,910,878.90
  6. Step 6: Final answer
    x = 68,866,318.35

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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.