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Finding the Fourth Proportional to 169,326.72, 253,990.08 and 69,469.92

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Solution

The fourth proportional to 169,326.72, 253,990.08 and 69,469.92 is: 104,204.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,326.72 : 253,990.08 = 69,469.92 : x
  2. Step 2: Convert to fraction form
    169,326.72/253,990.08 = 69,469.92/x
  3. Step 3: Cross multiply
    169,326.72x = 253,990.08 × 69,469.92
  4. Step 4: Simplify right side
    169,326.72x = 17,644,670,538.39
  5. Step 5: Solve for x
    x = 17,644,670,538.39/169,326.72
  6. Step 6: Final answer
    x = 104,204.88

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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.