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Finding the Fourth Proportional to 227,701.20, 341,423.80 and 87,464.40

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Solution

The fourth proportional to 227,701.20, 341,423.80 and 87,464.40 is: 131,147.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,701.20 : 341,423.80 = 87,464.40 : x
  2. Step 2: Convert to fraction form
    227,701.20/341,423.80 = 87,464.40/x
  3. Step 3: Cross multiply
    227,701.20x = 341,423.80 × 87,464.40
  4. Step 4: Simplify right side
    227,701.20x = 29,862,427,812.72
  5. Step 5: Solve for x
    x = 29,862,427,812.72/227,701.20
  6. Step 6: Final answer
    x = 131,147.43

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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.