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Finding the Fourth Proportional to 192,003.48, 287,842.55 and 79,613.55

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Solution

The fourth proportional to 192,003.48, 287,842.55 and 79,613.55 is: 119,352.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,003.48 : 287,842.55 = 79,613.55 : x
  2. Step 2: Convert to fraction form
    192,003.48/287,842.55 = 79,613.55/x
  3. Step 3: Cross multiply
    192,003.48x = 287,842.55 × 79,613.55
  4. Step 4: Simplify right side
    192,003.48x = 22,916,166,848.48
  5. Step 5: Solve for x
    x = 22,916,166,848.48/192,003.48
  6. Step 6: Final answer
    x = 119,352.87

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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.