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Finding the Fourth Proportional to 169,205.56, 253,766.93 and 74,459.66

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Solution

The fourth proportional to 169,205.56, 253,766.93 and 74,459.66 is: 111,671.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,205.56 : 253,766.93 = 74,459.66 : x
  2. Step 2: Convert to fraction form
    169,205.56/253,766.93 = 74,459.66/x
  3. Step 3: Cross multiply
    169,205.56x = 253,766.93 × 74,459.66
  4. Step 4: Simplify right side
    169,205.56x = 18,895,397,685.91
  5. Step 5: Solve for x
    x = 18,895,397,685.91/169,205.56
  6. Step 6: Final answer
    x = 111,671.26

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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.