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Finding the Fourth Proportional to 159,478.80, 239,218.20 and 149,637.30

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Solution

The fourth proportional to 159,478.80, 239,218.20 and 149,637.30 is: 224,455.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,478.80 : 239,218.20 = 149,637.30 : x
  2. Step 2: Convert to fraction form
    159,478.80/239,218.20 = 149,637.30/x
  3. Step 3: Cross multiply
    159,478.80x = 239,218.20 × 149,637.30
  4. Step 4: Simplify right side
    159,478.80x = 35,795,965,558.86
  5. Step 5: Solve for x
    x = 35,795,965,558.86/159,478.80
  6. Step 6: Final answer
    x = 224,455.95

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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.