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Finding the Fourth Proportional to 138,462.01, 207,697.26 and 43,693.02

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Solution

The fourth proportional to 138,462.01, 207,697.26 and 43,693.02 is: 65,540.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,462.01 : 207,697.26 = 43,693.02 : x
  2. Step 2: Convert to fraction form
    138,462.01/207,697.26 = 43,693.02/x
  3. Step 3: Cross multiply
    138,462.01x = 207,697.26 × 43,693.02
  4. Step 4: Simplify right side
    138,462.01x = 9,074,920,698.97
  5. Step 5: Solve for x
    x = 9,074,920,698.97/138,462.01
  6. Step 6: Final answer
    x = 65,540.87

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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.