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Finding the Fourth Proportional to 124,059.60, 185,916.60 and 92,221.20

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Solution

The fourth proportional to 124,059.60, 185,916.60 and 92,221.20 is: 138,203.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,059.60 : 185,916.60 = 92,221.20 : x
  2. Step 2: Convert to fraction form
    124,059.60/185,916.60 = 92,221.20/x
  3. Step 3: Cross multiply
    124,059.60x = 185,916.60 × 92,221.20
  4. Step 4: Simplify right side
    124,059.60x = 17,145,451,951.92
  5. Step 5: Solve for x
    x = 17,145,451,951.92/124,059.60
  6. Step 6: Final answer
    x = 138,203.35

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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.