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Finding the Fourth Proportional to 68,566.92, 102,101.12 and 66,044.61

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Solution

The fourth proportional to 68,566.92, 102,101.12 and 66,044.61 is: 98,345.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,566.92 : 102,101.12 = 66,044.61 : x
  2. Step 2: Convert to fraction form
    68,566.92/102,101.12 = 66,044.61/x
  3. Step 3: Cross multiply
    68,566.92x = 102,101.12 × 66,044.61
  4. Step 4: Simplify right side
    68,566.92x = 6,743,228,320.74
  5. Step 5: Solve for x
    x = 6,743,228,320.74/68,566.92
  6. Step 6: Final answer
    x = 98,345.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.