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Finding the Fourth Proportional to 79,901.44, 110,270.21 and 45,921.78

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Solution

The fourth proportional to 79,901.44, 110,270.21 and 45,921.78 is: 63,375.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,901.44 : 110,270.21 = 45,921.78 : x
  2. Step 2: Convert to fraction form
    79,901.44/110,270.21 = 45,921.78/x
  3. Step 3: Cross multiply
    79,901.44x = 110,270.21 × 45,921.78
  4. Step 4: Simplify right side
    79,901.44x = 5,063,804,324.17
  5. Step 5: Solve for x
    x = 5,063,804,324.17/79,901.44
  6. Step 6: Final answer
    x = 63,375.63

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1.5x scale

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.