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Finding the Fourth Proportional to 162,471.54, 243,726.75 and 57,268.74

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Solution

The fourth proportional to 162,471.54, 243,726.75 and 57,268.74 is: 85,909.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,471.54 : 243,726.75 = 57,268.74 : x
  2. Step 2: Convert to fraction form
    162,471.54/243,726.75 = 57,268.74/x
  3. Step 3: Cross multiply
    162,471.54x = 243,726.75 × 57,268.74
  4. Step 4: Simplify right side
    162,471.54x = 13,957,923,876.80
  5. Step 5: Solve for x
    x = 13,957,923,876.80/162,471.54
  6. Step 6: Final answer
    x = 85,909.96

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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.