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Finding the Fourth Proportional to 117,342, 176,008.20 and 42,463.92

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Solution

The fourth proportional to 117,342, 176,008.20 and 42,463.92 is: 63,694.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,342 : 176,008.20 = 42,463.92 : x
  2. Step 2: Convert to fraction form
    117,342/176,008.20 = 42,463.92/x
  3. Step 3: Cross multiply
    117,342x = 176,008.20 × 42,463.92
  4. Step 4: Simplify right side
    117,342x = 7,473,998,124.14
  5. Step 5: Solve for x
    x = 7,473,998,124.14/117,342
  6. Step 6: Final answer
    x = 63,694.14

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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.