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Finding the Fourth Proportional to 150,436.79, 225,669.56 and 42,365.88

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Solution

The fourth proportional to 150,436.79, 225,669.56 and 42,365.88 is: 63,552.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,436.79 : 225,669.56 = 42,365.88 : x
  2. Step 2: Convert to fraction form
    150,436.79/225,669.56 = 42,365.88/x
  3. Step 3: Cross multiply
    150,436.79x = 225,669.56 × 42,365.88
  4. Step 4: Simplify right side
    150,436.79x = 9,560,689,286.78
  5. Step 5: Solve for x
    x = 9,560,689,286.78/150,436.79
  6. Step 6: Final answer
    x = 63,552.87

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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.