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Finding the Fourth Proportional to 59,704.92, 89,388.90 and 31,561.20

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Solution

The fourth proportional to 59,704.92, 89,388.90 and 31,561.20 is: 47,252.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,704.92 : 89,388.90 = 31,561.20 : x
  2. Step 2: Convert to fraction form
    59,704.92/89,388.90 = 31,561.20/x
  3. Step 3: Cross multiply
    59,704.92x = 89,388.90 × 31,561.20
  4. Step 4: Simplify right side
    59,704.92x = 2,821,220,950.68
  5. Step 5: Solve for x
    x = 2,821,220,950.68/59,704.92
  6. Step 6: Final answer
    x = 47,252.74

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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.