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Finding the Fourth Proportional to 292,892.28, 438,836.88 and 159,865.92

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Solution

The fourth proportional to 292,892.28, 438,836.88 and 159,865.92 is: 239,525.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,892.28 : 438,836.88 = 159,865.92 : x
  2. Step 2: Convert to fraction form
    292,892.28/438,836.88 = 159,865.92/x
  3. Step 3: Cross multiply
    292,892.28x = 438,836.88 × 159,865.92
  4. Step 4: Simplify right side
    292,892.28x = 70,155,061,551.13
  5. Step 5: Solve for x
    x = 70,155,061,551.13/292,892.28
  6. Step 6: Final answer
    x = 239,525.13

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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.