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Finding the Fourth Proportional to 81,862.48, 122,793.73 and 22,698.15

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Solution

The fourth proportional to 81,862.48, 122,793.73 and 22,698.15 is: 34,047.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,862.48 : 122,793.73 = 22,698.15 : x
  2. Step 2: Convert to fraction form
    81,862.48/122,793.73 = 22,698.15/x
  3. Step 3: Cross multiply
    81,862.48x = 122,793.73 × 22,698.15
  4. Step 4: Simplify right side
    81,862.48x = 2,787,190,502.60
  5. Step 5: Solve for x
    x = 2,787,190,502.60/81,862.48
  6. Step 6: Final answer
    x = 34,047.23

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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.