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Finding the Fourth Proportional to 163,475.52, 225,616.39 and 91,854

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Solution

The fourth proportional to 163,475.52, 225,616.39 and 91,854 is: 126,769.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,475.52 : 225,616.39 = 91,854 : x
  2. Step 2: Convert to fraction form
    163,475.52/225,616.39 = 91,854/x
  3. Step 3: Cross multiply
    163,475.52x = 225,616.39 × 91,854
  4. Step 4: Simplify right side
    163,475.52x = 20,723,767,657.43
  5. Step 5: Solve for x
    x = 20,723,767,657.43/163,475.52
  6. Step 6: Final answer
    x = 126,769.86

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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.