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Finding the Fourth Proportional to 169,469.97, 253,895.13 and 79,347.35

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Solution

The fourth proportional to 169,469.97, 253,895.13 and 79,347.35 is: 118,875.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,469.97 : 253,895.13 = 79,347.35 : x
  2. Step 2: Convert to fraction form
    169,469.97/253,895.13 = 79,347.35/x
  3. Step 3: Cross multiply
    169,469.97x = 253,895.13 × 79,347.35
  4. Step 4: Simplify right side
    169,469.97x = 20,145,904,473.93
  5. Step 5: Solve for x
    x = 20,145,904,473.93/169,469.97
  6. Step 6: Final answer
    x = 118,875.95

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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.