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Finding the Fourth Proportional to 191,761.38, 287,683.60 and 73,432.73

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Solution

The fourth proportional to 191,761.38, 287,683.60 and 73,432.73 is: 110,164.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,761.38 : 287,683.60 = 73,432.73 : x
  2. Step 2: Convert to fraction form
    191,761.38/287,683.60 = 73,432.73/x
  3. Step 3: Cross multiply
    191,761.38x = 287,683.60 × 73,432.73
  4. Step 4: Simplify right side
    191,761.38x = 21,125,391,179.32
  5. Step 5: Solve for x
    x = 21,125,391,179.32/191,761.38
  6. Step 6: Final answer
    x = 110,164.99

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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.