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Finding the Fourth Proportional to 574,221.30, 861,515.55 and 174,938.10

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Solution

The fourth proportional to 574,221.30, 861,515.55 and 174,938.10 is: 262,463.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,221.30 : 861,515.55 = 174,938.10 : x
  2. Step 2: Convert to fraction form
    574,221.30/861,515.55 = 174,938.10/x
  3. Step 3: Cross multiply
    574,221.30x = 861,515.55 × 174,938.10
  4. Step 4: Simplify right side
    574,221.30x = 150,711,893,437.46
  5. Step 5: Solve for x
    x = 150,711,893,437.46/574,221.30
  6. Step 6: Final answer
    x = 262,463.08

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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.