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Finding the Fourth Proportional to 88,418.70, 122,016.54 and 48,132.80

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Solution

The fourth proportional to 88,418.70, 122,016.54 and 48,132.80 is: 66,422.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,418.70 : 122,016.54 = 48,132.80 : x
  2. Step 2: Convert to fraction form
    88,418.70/122,016.54 = 48,132.80/x
  3. Step 3: Cross multiply
    88,418.70x = 122,016.54 × 48,132.80
  4. Step 4: Simplify right side
    88,418.70x = 5,872,997,106.43
  5. Step 5: Solve for x
    x = 5,872,997,106.43/88,418.70
  6. Step 6: Final answer
    x = 66,422.57

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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.