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Finding the Fourth Proportional to 96,407.30, 144,956.55 and 81,200.90

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Solution

The fourth proportional to 96,407.30, 144,956.55 and 81,200.90 is: 122,092.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,407.30 : 144,956.55 = 81,200.90 : x
  2. Step 2: Convert to fraction form
    96,407.30/144,956.55 = 81,200.90/x
  3. Step 3: Cross multiply
    96,407.30x = 144,956.55 × 81,200.90
  4. Step 4: Simplify right side
    96,407.30x = 11,770,602,320.90
  5. Step 5: Solve for x
    x = 11,770,602,320.90/96,407.30
  6. Step 6: Final answer
    x = 122,092.44

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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.