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Finding the Fourth Proportional to 568,792.25, 853,190.70 and 142,326.90

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Solution

The fourth proportional to 568,792.25, 853,190.70 and 142,326.90 is: 213,490.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,792.25 : 853,190.70 = 142,326.90 : x
  2. Step 2: Convert to fraction form
    568,792.25/853,190.70 = 142,326.90/x
  3. Step 3: Cross multiply
    568,792.25x = 853,190.70 × 142,326.90
  4. Step 4: Simplify right side
    568,792.25x = 121,431,987,439.83
  5. Step 5: Solve for x
    x = 121,431,987,439.83/568,792.25
  6. Step 6: Final answer
    x = 213,490.93

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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.