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Finding the Fourth Proportional to 574,306.50, 861,459.70 and 153,571.44

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Solution

The fourth proportional to 574,306.50, 861,459.70 and 153,571.44 is: 230,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,306.50 : 861,459.70 = 153,571.44 : x
  2. Step 2: Convert to fraction form
    574,306.50/861,459.70 = 153,571.44/x
  3. Step 3: Cross multiply
    574,306.50x = 861,459.70 × 153,571.44
  4. Step 4: Simplify right side
    574,306.50x = 132,295,606,630.97
  5. Step 5: Solve for x
    x = 132,295,606,630.97/574,306.50
  6. Step 6: Final answer
    x = 230,357.15

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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.