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Finding the Fourth Proportional to 399,614.13, 599,421.24 and 162,975.33

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Solution

The fourth proportional to 399,614.13, 599,421.24 and 162,975.33 is: 244,463.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,614.13 : 599,421.24 = 162,975.33 : x
  2. Step 2: Convert to fraction form
    399,614.13/599,421.24 = 162,975.33/x
  3. Step 3: Cross multiply
    399,614.13x = 599,421.24 × 162,975.33
  4. Step 4: Simplify right side
    399,614.13x = 97,690,874,398.01
  5. Step 5: Solve for x
    x = 97,690,874,398.01/399,614.13
  6. Step 6: Final answer
    x = 244,463.01

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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.