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Finding the Fourth Proportional to 57,788.91, 86,710.77 and 40,046.85

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Solution

The fourth proportional to 57,788.91, 86,710.77 and 40,046.85 is: 60,089.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,788.91 : 86,710.77 = 40,046.85 : x
  2. Step 2: Convert to fraction form
    57,788.91/86,710.77 = 40,046.85/x
  3. Step 3: Cross multiply
    57,788.91x = 86,710.77 × 40,046.85
  4. Step 4: Simplify right side
    57,788.91x = 3,472,493,199.57
  5. Step 5: Solve for x
    x = 3,472,493,199.57/57,788.91
  6. Step 6: Final answer
    x = 60,089.27

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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.