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Finding the Fourth Proportional to 125,233.62, 172,829.46 and 74,276.52

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Solution

The fourth proportional to 125,233.62, 172,829.46 and 74,276.52 is: 102,505.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,233.62 : 172,829.46 = 74,276.52 : x
  2. Step 2: Convert to fraction form
    125,233.62/172,829.46 = 74,276.52/x
  3. Step 3: Cross multiply
    125,233.62x = 172,829.46 × 74,276.52
  4. Step 4: Simplify right side
    125,233.62x = 12,837,170,842.28
  5. Step 5: Solve for x
    x = 12,837,170,842.28/125,233.62
  6. Step 6: Final answer
    x = 102,505.79

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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.