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Finding the Fourth Proportional to 269,503.40, 371,868.27 and 172,791.83

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Solution

The fourth proportional to 269,503.40, 371,868.27 and 172,791.83 is: 238,422.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,503.40 : 371,868.27 = 172,791.83 : x
  2. Step 2: Convert to fraction form
    269,503.40/371,868.27 = 172,791.83/x
  3. Step 3: Cross multiply
    269,503.40x = 371,868.27 × 172,791.83
  4. Step 4: Simplify right side
    269,503.40x = 64,255,799,173.94
  5. Step 5: Solve for x
    x = 64,255,799,173.94/269,503.40
  6. Step 6: Final answer
    x = 238,422.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.