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Finding the Fourth Proportional to 71,788,269.70, 107,682,404.55 and 64,024,711.30

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Solution

The fourth proportional to 71,788,269.70, 107,682,404.55 and 64,024,711.30 is: 96,037,066.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,788,269.70 : 107,682,404.55 = 64,024,711.30 : x
  2. Step 2: Convert to fraction form
    71,788,269.70/107,682,404.55 = 64,024,711.30/x
  3. Step 3: Cross multiply
    71,788,269.70x = 107,682,404.55 × 64,024,711.30
  4. Step 4: Simplify right side
    71,788,269.70x = 6,894,334,863,403,556
  5. Step 5: Solve for x
    x = 6,894,334,863,403,556/71,788,269.70
  6. Step 6: Final answer
    x = 96,037,066.95

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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.