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Finding the Fourth Proportional to 177,988.86, 267,082.38 and 72,881.64

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Solution

The fourth proportional to 177,988.86, 267,082.38 and 72,881.64 is: 109,363.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,988.86 : 267,082.38 = 72,881.64 : x
  2. Step 2: Convert to fraction form
    177,988.86/267,082.38 = 72,881.64/x
  3. Step 3: Cross multiply
    177,988.86x = 267,082.38 × 72,881.64
  4. Step 4: Simplify right side
    177,988.86x = 19,465,401,869.50
  5. Step 5: Solve for x
    x = 19,465,401,869.50/177,988.86
  6. Step 6: Final answer
    x = 109,363.03

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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.