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Finding the Fourth Proportional to 68,691.79, 103,007.98 and 23,717.89

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Solution

The fourth proportional to 68,691.79, 103,007.98 and 23,717.89 is: 35,566.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,691.79 : 103,007.98 = 23,717.89 : x
  2. Step 2: Convert to fraction form
    68,691.79/103,007.98 = 23,717.89/x
  3. Step 3: Cross multiply
    68,691.79x = 103,007.98 × 23,717.89
  4. Step 4: Simplify right side
    68,691.79x = 2,443,131,938.76
  5. Step 5: Solve for x
    x = 2,443,131,938.76/68,691.79
  6. Step 6: Final answer
    x = 35,566.58

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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.