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Finding the Fourth Proportional to 124,590.96, 171,934.92 and 68,002.20

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Solution

The fourth proportional to 124,590.96, 171,934.92 and 68,002.20 is: 93,842.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,590.96 : 171,934.92 = 68,002.20 : x
  2. Step 2: Convert to fraction form
    124,590.96/171,934.92 = 68,002.20/x
  3. Step 3: Cross multiply
    124,590.96x = 171,934.92 × 68,002.20
  4. Step 4: Simplify right side
    124,590.96x = 11,691,952,816.82
  5. Step 5: Solve for x
    x = 11,691,952,816.82/124,590.96
  6. Step 6: Final answer
    x = 93,842.71

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1.5x scale

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.