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Finding the Fourth Proportional to 178,348.20, 267,521.94 and 43,411.20

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Solution

The fourth proportional to 178,348.20, 267,521.94 and 43,411.20 is: 65,116.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,348.20 : 267,521.94 = 43,411.20 : x
  2. Step 2: Convert to fraction form
    178,348.20/267,521.94 = 43,411.20/x
  3. Step 3: Cross multiply
    178,348.20x = 267,521.94 × 43,411.20
  4. Step 4: Simplify right side
    178,348.20x = 11,613,448,441.73
  5. Step 5: Solve for x
    x = 11,613,448,441.73/178,348.20
  6. Step 6: Final answer
    x = 65,116.71

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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.