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Finding the Fourth Proportional to 79,857.92, 119,766.42 and 23,684.90

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Solution

The fourth proportional to 79,857.92, 119,766.42 and 23,684.90 is: 35,521.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,857.92 : 119,766.42 = 23,684.90 : x
  2. Step 2: Convert to fraction form
    79,857.92/119,766.42 = 23,684.90/x
  3. Step 3: Cross multiply
    79,857.92x = 119,766.42 × 23,684.90
  4. Step 4: Simplify right side
    79,857.92x = 2,836,655,681.06
  5. Step 5: Solve for x
    x = 2,836,655,681.06/79,857.92
  6. Step 6: Final answer
    x = 35,521.28

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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.