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Finding the Fourth Proportional to 71,900,808.60, 107,851,212.90 and 59,943,386.10

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Solution

The fourth proportional to 71,900,808.60, 107,851,212.90 and 59,943,386.10 is: 89,915,079.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,900,808.60 : 107,851,212.90 = 59,943,386.10 : x
  2. Step 2: Convert to fraction form
    71,900,808.60/107,851,212.90 = 59,943,386.10/x
  3. Step 3: Cross multiply
    71,900,808.60x = 107,851,212.90 × 59,943,386.10
  4. Step 4: Simplify right side
    71,900,808.60x = 6,464,966,896,218,001
  5. Step 5: Solve for x
    x = 6,464,966,896,218,001/71,900,808.60
  6. Step 6: Final answer
    x = 89,915,079.15

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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.