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Finding the Fourth Proportional to 399,568.86, 599,155.11 and 146,839.14

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Solution

The fourth proportional to 399,568.86, 599,155.11 and 146,839.14 is: 220,185.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,568.86 : 599,155.11 = 146,839.14 : x
  2. Step 2: Convert to fraction form
    399,568.86/599,155.11 = 146,839.14/x
  3. Step 3: Cross multiply
    399,568.86x = 599,155.11 × 146,839.14
  4. Step 4: Simplify right side
    399,568.86x = 87,979,421,079.01
  5. Step 5: Solve for x
    x = 87,979,421,079.01/399,568.86
  6. Step 6: Final answer
    x = 220,185.88

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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.