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Finding the Fourth Proportional to 234,695.38, 352,070.56 and 74,715.28

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Solution

The fourth proportional to 234,695.38, 352,070.56 and 74,715.28 is: 112,081.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,695.38 : 352,070.56 = 74,715.28 : x
  2. Step 2: Convert to fraction form
    234,695.38/352,070.56 = 74,715.28/x
  3. Step 3: Cross multiply
    234,695.38x = 352,070.56 × 74,715.28
  4. Step 4: Simplify right side
    234,695.38x = 26,305,051,453.63
  5. Step 5: Solve for x
    x = 26,305,051,453.63/234,695.38
  6. Step 6: Final answer
    x = 112,081.68

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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.