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Finding the Fourth Proportional to 79,871.74, 110,228.34 and 45,891.23

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Solution

The fourth proportional to 79,871.74, 110,228.34 and 45,891.23 is: 63,332.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,871.74 : 110,228.34 = 45,891.23 : x
  2. Step 2: Convert to fraction form
    79,871.74/110,228.34 = 45,891.23/x
  3. Step 3: Cross multiply
    79,871.74x = 110,228.34 × 45,891.23
  4. Step 4: Simplify right side
    79,871.74x = 5,058,513,724.41
  5. Step 5: Solve for x
    x = 5,058,513,724.41/79,871.74
  6. Step 6: Final answer
    x = 63,332.96

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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.