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Finding the Fourth Proportional to 228,959.70, 343,439.55 and 71,204.10

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Solution

The fourth proportional to 228,959.70, 343,439.55 and 71,204.10 is: 106,806.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,959.70 : 343,439.55 = 71,204.10 : x
  2. Step 2: Convert to fraction form
    228,959.70/343,439.55 = 71,204.10/x
  3. Step 3: Cross multiply
    228,959.70x = 343,439.55 × 71,204.10
  4. Step 4: Simplify right side
    228,959.70x = 24,454,304,062.16
  5. Step 5: Solve for x
    x = 24,454,304,062.16/228,959.70
  6. Step 6: Final answer
    x = 106,806.15

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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.