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Finding the Fourth Proportional to 132,155.61, 182,374.65 and 74,793.87

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Solution

The fourth proportional to 132,155.61, 182,374.65 and 74,793.87 is: 103,215.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,155.61 : 182,374.65 = 74,793.87 : x
  2. Step 2: Convert to fraction form
    132,155.61/182,374.65 = 74,793.87/x
  3. Step 3: Cross multiply
    132,155.61x = 182,374.65 × 74,793.87
  4. Step 4: Simplify right side
    132,155.61x = 13,640,505,863.40
  5. Step 5: Solve for x
    x = 13,640,505,863.40/132,155.61
  6. Step 6: Final answer
    x = 103,215.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.