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Finding the Fourth Proportional to 279,168.10, 418,583.22 and 125,265.88

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Solution

The fourth proportional to 279,168.10, 418,583.22 and 125,265.88 is: 187,823.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,168.10 : 418,583.22 = 125,265.88 : x
  2. Step 2: Convert to fraction form
    279,168.10/418,583.22 = 125,265.88/x
  3. Step 3: Cross multiply
    279,168.10x = 418,583.22 × 125,265.88
  4. Step 4: Simplify right side
    279,168.10x = 52,434,195,406.53
  5. Step 5: Solve for x
    x = 52,434,195,406.53/279,168.10
  6. Step 6: Final answer
    x = 187,823.02

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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.