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Finding the Fourth Proportional to 247,726.02, 371,687.49 and 79,272.30

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Solution

The fourth proportional to 247,726.02, 371,687.49 and 79,272.30 is: 118,939.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,726.02 : 371,687.49 = 79,272.30 : x
  2. Step 2: Convert to fraction form
    247,726.02/371,687.49 = 79,272.30/x
  3. Step 3: Cross multiply
    247,726.02x = 371,687.49 × 79,272.30
  4. Step 4: Simplify right side
    247,726.02x = 29,464,522,213.53
  5. Step 5: Solve for x
    x = 29,464,522,213.53/247,726.02
  6. Step 6: Final answer
    x = 118,939.96

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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.