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Finding the Fourth Proportional to 119,901.31, 179,851.65 and 112,593.70

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Solution

The fourth proportional to 119,901.31, 179,851.65 and 112,593.70 is: 168,890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,901.31 : 179,851.65 = 112,593.70 : x
  2. Step 2: Convert to fraction form
    119,901.31/179,851.65 = 112,593.70/x
  3. Step 3: Cross multiply
    119,901.31x = 179,851.65 × 112,593.70
  4. Step 4: Simplify right side
    119,901.31x = 20,250,162,724.61
  5. Step 5: Solve for x
    x = 20,250,162,724.61/119,901.31
  6. Step 6: Final answer
    x = 168,890.25

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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.