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Finding the Fourth Proportional to 169,251.11, 253,870.49 and 68,080.49

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Solution

The fourth proportional to 169,251.11, 253,870.49 and 68,080.49 is: 102,118.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,251.11 : 253,870.49 = 68,080.49 : x
  2. Step 2: Convert to fraction form
    169,251.11/253,870.49 = 68,080.49/x
  3. Step 3: Cross multiply
    169,251.11x = 253,870.49 × 68,080.49
  4. Step 4: Simplify right side
    169,251.11x = 17,283,627,355.74
  5. Step 5: Solve for x
    x = 17,283,627,355.74/169,251.11
  6. Step 6: Final answer
    x = 102,118.25

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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.