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Finding the Fourth Proportional to 574,269.86, 861,338.88 and 153,578.54

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Solution

The fourth proportional to 574,269.86, 861,338.88 and 153,578.54 is: 230,350.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,269.86 : 861,338.88 = 153,578.54 : x
  2. Step 2: Convert to fraction form
    574,269.86/861,338.88 = 153,578.54/x
  3. Step 3: Cross multiply
    574,269.86x = 861,338.88 × 153,578.54
  4. Step 4: Simplify right side
    574,269.86x = 132,283,167,635.64
  5. Step 5: Solve for x
    x = 132,283,167,635.64/574,269.86
  6. Step 6: Final answer
    x = 230,350.18

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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.