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Finding the Fourth Proportional to 335,049.20, 502,662.90 and 145,428.20

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Solution

The fourth proportional to 335,049.20, 502,662.90 and 145,428.20 is: 218,180.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,049.20 : 502,662.90 = 145,428.20 : x
  2. Step 2: Convert to fraction form
    335,049.20/502,662.90 = 145,428.20/x
  3. Step 3: Cross multiply
    335,049.20x = 502,662.90 × 145,428.20
  4. Step 4: Simplify right side
    335,049.20x = 73,101,360,753.78
  5. Step 5: Solve for x
    x = 73,101,360,753.78/335,049.20
  6. Step 6: Final answer
    x = 218,180.97

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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.