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Finding the Fourth Proportional to 177,960.40, 267,091.80 and 72,854.80

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Solution

The fourth proportional to 177,960.40, 267,091.80 and 72,854.80 is: 109,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,960.40 : 267,091.80 = 72,854.80 : x
  2. Step 2: Convert to fraction form
    177,960.40/267,091.80 = 72,854.80/x
  3. Step 3: Cross multiply
    177,960.40x = 267,091.80 × 72,854.80
  4. Step 4: Simplify right side
    177,960.40x = 19,458,919,670.64
  5. Step 5: Solve for x
    x = 19,458,919,670.64/177,960.40
  6. Step 6: Final answer
    x = 109,344.10

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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.