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Finding the Fourth Proportional to 360,901.31, 541,426.68 and 108,171.59

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Solution

The fourth proportional to 360,901.31, 541,426.68 and 108,171.59 is: 162,279.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,901.31 : 541,426.68 = 108,171.59 : x
  2. Step 2: Convert to fraction form
    360,901.31/541,426.68 = 108,171.59/x
  3. Step 3: Cross multiply
    360,901.31x = 541,426.68 × 108,171.59
  4. Step 4: Simplify right side
    360,901.31x = 58,566,982,136.89
  5. Step 5: Solve for x
    x = 58,566,982,136.89/360,901.31
  6. Step 6: Final answer
    x = 162,279.77

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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.