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Finding the Fourth Proportional to 138,796.29, 208,163.29 and 63,844.45

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Solution

The fourth proportional to 138,796.29, 208,163.29 and 63,844.45 is: 95,752.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,796.29 : 208,163.29 = 63,844.45 : x
  2. Step 2: Convert to fraction form
    138,796.29/208,163.29 = 63,844.45/x
  3. Step 3: Cross multiply
    138,796.29x = 208,163.29 × 63,844.45
  4. Step 4: Simplify right side
    138,796.29x = 13,290,070,760.24
  5. Step 5: Solve for x
    x = 13,290,070,760.24/138,796.29
  6. Step 6: Final answer
    x = 95,752.35

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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.