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Finding the Fourth Proportional to 169,900.96, 254,708.88 and 75,115.84

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Solution

The fourth proportional to 169,900.96, 254,708.88 and 75,115.84 is: 112,610.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,900.96 : 254,708.88 = 75,115.84 : x
  2. Step 2: Convert to fraction form
    169,900.96/254,708.88 = 75,115.84/x
  3. Step 3: Cross multiply
    169,900.96x = 254,708.88 × 75,115.84
  4. Step 4: Simplify right side
    169,900.96x = 19,132,671,476.66
  5. Step 5: Solve for x
    x = 19,132,671,476.66/169,900.96
  6. Step 6: Final answer
    x = 112,610.73

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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.