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Finding the Fourth Proportional to 103,704.66, 155,549.48 and 40,512.92

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Solution

The fourth proportional to 103,704.66, 155,549.48 and 40,512.92 is: 60,766.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,704.66 : 155,549.48 = 40,512.92 : x
  2. Step 2: Convert to fraction form
    103,704.66/155,549.48 = 40,512.92/x
  3. Step 3: Cross multiply
    103,704.66x = 155,549.48 × 40,512.92
  4. Step 4: Simplify right side
    103,704.66x = 6,301,762,658.97
  5. Step 5: Solve for x
    x = 6,301,762,658.97/103,704.66
  6. Step 6: Final answer
    x = 60,766.44

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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.