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Finding the Fourth Proportional to 124,590.69, 171,932.67 and 68,002.47

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Solution

The fourth proportional to 124,590.69, 171,932.67 and 68,002.47 is: 93,842.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,590.69 : 171,932.67 = 68,002.47 : x
  2. Step 2: Convert to fraction form
    124,590.69/171,932.67 = 68,002.47/x
  3. Step 3: Cross multiply
    124,590.69x = 171,932.67 × 68,002.47
  4. Step 4: Simplify right side
    124,590.69x = 11,691,846,233.69
  5. Step 5: Solve for x
    x = 11,691,846,233.69/124,590.69
  6. Step 6: Final answer
    x = 93,842.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.