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Finding the Fourth Proportional to 234,716.76, 323,909.10 and 127,287

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Solution

The fourth proportional to 234,716.76, 323,909.10 and 127,287 is: 175,656.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,716.76 : 323,909.10 = 127,287 : x
  2. Step 2: Convert to fraction form
    234,716.76/323,909.10 = 127,287/x
  3. Step 3: Cross multiply
    234,716.76x = 323,909.10 × 127,287
  4. Step 4: Simplify right side
    234,716.76x = 41,229,417,611.70
  5. Step 5: Solve for x
    x = 41,229,417,611.70/234,716.76
  6. Step 6: Final answer
    x = 175,656.04

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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.