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Finding the Fourth Proportional to 192,781.74, 289,186.12 and 59,644.46

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Solution

The fourth proportional to 192,781.74, 289,186.12 and 59,644.46 is: 89,470.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,781.74 : 289,186.12 = 59,644.46 : x
  2. Step 2: Convert to fraction form
    192,781.74/289,186.12 = 59,644.46/x
  3. Step 3: Cross multiply
    192,781.74x = 289,186.12 × 59,644.46
  4. Step 4: Simplify right side
    192,781.74x = 17,248,349,966.90
  5. Step 5: Solve for x
    x = 17,248,349,966.90/192,781.74
  6. Step 6: Final answer
    x = 89,470.87

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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.