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Finding the Fourth Proportional to 225,777.88, 338,429.73 and 75,966.16

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Solution

The fourth proportional to 225,777.88, 338,429.73 and 75,966.16 is: 113,869.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,777.88 : 338,429.73 = 75,966.16 : x
  2. Step 2: Convert to fraction form
    225,777.88/338,429.73 = 75,966.16/x
  3. Step 3: Cross multiply
    225,777.88x = 338,429.73 × 75,966.16
  4. Step 4: Simplify right side
    225,777.88x = 25,709,205,325.79
  5. Step 5: Solve for x
    x = 25,709,205,325.79/225,777.88
  6. Step 6: Final answer
    x = 113,869.46

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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.