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Finding the Fourth Proportional to 88,480.70, 122,125.42 and 54,518.28

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Solution

The fourth proportional to 88,480.70, 122,125.42 and 54,518.28 is: 75,248.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,480.70 : 122,125.42 = 54,518.28 : x
  2. Step 2: Convert to fraction form
    88,480.70/122,125.42 = 54,518.28/x
  3. Step 3: Cross multiply
    88,480.70x = 122,125.42 × 54,518.28
  4. Step 4: Simplify right side
    88,480.70x = 6,658,067,842.68
  5. Step 5: Solve for x
    x = 6,658,067,842.68/88,480.70
  6. Step 6: Final answer
    x = 75,248.82

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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.