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Finding the Fourth Proportional to 192,718.92, 288,972.18 and 59,562.48

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Solution

The fourth proportional to 192,718.92, 288,972.18 and 59,562.48 is: 89,310.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,718.92 : 288,972.18 = 59,562.48 : x
  2. Step 2: Convert to fraction form
    192,718.92/288,972.18 = 59,562.48/x
  3. Step 3: Cross multiply
    192,718.92x = 288,972.18 × 59,562.48
  4. Step 4: Simplify right side
    192,718.92x = 17,211,899,691.81
  5. Step 5: Solve for x
    x = 17,211,899,691.81/192,718.92
  6. Step 6: Final answer
    x = 89,310.90

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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.