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Finding the Fourth Proportional to 234,532.72, 351,590.28 and 84,739.60

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Solution

The fourth proportional to 234,532.72, 351,590.28 and 84,739.60 is: 127,033.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,532.72 : 351,590.28 = 84,739.60 : x
  2. Step 2: Convert to fraction form
    234,532.72/351,590.28 = 84,739.60/x
  3. Step 3: Cross multiply
    234,532.72x = 351,590.28 × 84,739.60
  4. Step 4: Simplify right side
    234,532.72x = 29,793,619,691.09
  5. Step 5: Solve for x
    x = 29,793,619,691.09/234,532.72
  6. Step 6: Final answer
    x = 127,033.96

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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.