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Finding the Fourth Proportional to 410,049.99, 615,079.04 and 143,816.90

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Solution

The fourth proportional to 410,049.99, 615,079.04 and 143,816.90 is: 215,726.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,049.99 : 615,079.04 = 143,816.90 : x
  2. Step 2: Convert to fraction form
    410,049.99/615,079.04 = 143,816.90/x
  3. Step 3: Cross multiply
    410,049.99x = 615,079.04 × 143,816.90
  4. Step 4: Simplify right side
    410,049.99x = 88,458,756,993.30
  5. Step 5: Solve for x
    x = 88,458,756,993.30/410,049.99
  6. Step 6: Final answer
    x = 215,726.76

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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.