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Finding the Fourth Proportional to 267,920.80, 369,743.80 and 147,060.80

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Solution

The fourth proportional to 267,920.80, 369,743.80 and 147,060.80 is: 202,951.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,920.80 : 369,743.80 = 147,060.80 : x
  2. Step 2: Convert to fraction form
    267,920.80/369,743.80 = 147,060.80/x
  3. Step 3: Cross multiply
    267,920.80x = 369,743.80 × 147,060.80
  4. Step 4: Simplify right side
    267,920.80x = 54,374,819,023.04
  5. Step 5: Solve for x
    x = 54,374,819,023.04/267,920.80
  6. Step 6: Final answer
    x = 202,951.09

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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.