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Finding the Fourth Proportional to 225,862.66, 338,707.92 and 76,062.76

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Solution

The fourth proportional to 225,862.66, 338,707.92 and 76,062.76 is: 114,065.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,862.66 : 338,707.92 = 76,062.76 : x
  2. Step 2: Convert to fraction form
    225,862.66/338,707.92 = 76,062.76/x
  3. Step 3: Cross multiply
    225,862.66x = 338,707.92 × 76,062.76
  4. Step 4: Simplify right side
    225,862.66x = 25,763,059,229.06
  5. Step 5: Solve for x
    x = 25,763,059,229.06/225,862.66
  6. Step 6: Final answer
    x = 114,065.15

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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.