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Finding the Fourth Proportional to 322,909.74, 484,102.17 and 112,695.30

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Solution

The fourth proportional to 322,909.74, 484,102.17 and 112,695.30 is: 168,951.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,909.74 : 484,102.17 = 112,695.30 : x
  2. Step 2: Convert to fraction form
    322,909.74/484,102.17 = 112,695.30/x
  3. Step 3: Cross multiply
    322,909.74x = 484,102.17 × 112,695.30
  4. Step 4: Simplify right side
    322,909.74x = 54,556,039,278.80
  5. Step 5: Solve for x
    x = 54,556,039,278.80/322,909.74
  6. Step 6: Final answer
    x = 168,951.36

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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.