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Finding the Fourth Proportional to 193,842.76, 267,503.17 and 107,799.87

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Solution

The fourth proportional to 193,842.76, 267,503.17 and 107,799.87 is: 148,763.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,842.76 : 267,503.17 = 107,799.87 : x
  2. Step 2: Convert to fraction form
    193,842.76/267,503.17 = 107,799.87/x
  3. Step 3: Cross multiply
    193,842.76x = 267,503.17 × 107,799.87
  4. Step 4: Simplify right side
    193,842.76x = 28,836,806,950.59
  5. Step 5: Solve for x
    x = 28,836,806,950.59/193,842.76
  6. Step 6: Final answer
    x = 148,763.91

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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.