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Finding the Fourth Proportional to 79,710.44, 110,053.32 and 49,540.76

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Solution

The fourth proportional to 79,710.44, 110,053.32 and 49,540.76 is: 68,399.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,710.44 : 110,053.32 = 49,540.76 : x
  2. Step 2: Convert to fraction form
    79,710.44/110,053.32 = 49,540.76/x
  3. Step 3: Cross multiply
    79,710.44x = 110,053.32 × 49,540.76
  4. Step 4: Simplify right side
    79,710.44x = 5,452,125,113.32
  5. Step 5: Solve for x
    x = 5,452,125,113.32/79,710.44
  6. Step 6: Final answer
    x = 68,399.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.