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Finding the Fourth Proportional to 234,511.73, 351,763.88 and 74,585.36

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Solution

The fourth proportional to 234,511.73, 351,763.88 and 74,585.36 is: 111,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,511.73 : 351,763.88 = 74,585.36 : x
  2. Step 2: Convert to fraction form
    234,511.73/351,763.88 = 74,585.36/x
  3. Step 3: Cross multiply
    234,511.73x = 351,763.88 × 74,585.36
  4. Step 4: Simplify right side
    234,511.73x = 26,236,434,572.15
  5. Step 5: Solve for x
    x = 26,236,434,572.15/234,511.73
  6. Step 6: Final answer
    x = 111,876.85

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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.