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Finding the Fourth Proportional to 125,691.84, 188,570.16 and 36,948.24

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Solution

The fourth proportional to 125,691.84, 188,570.16 and 36,948.24 is: 55,431.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,691.84 : 188,570.16 = 36,948.24 : x
  2. Step 2: Convert to fraction form
    125,691.84/188,570.16 = 36,948.24/x
  3. Step 3: Cross multiply
    125,691.84x = 188,570.16 × 36,948.24
  4. Step 4: Simplify right side
    125,691.84x = 6,967,335,528.52
  5. Step 5: Solve for x
    x = 6,967,335,528.52/125,691.84
  6. Step 6: Final answer
    x = 55,431.88

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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.