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Finding the Fourth Proportional to 88,531.79, 122,173.88 and 48,245.55

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Solution

The fourth proportional to 88,531.79, 122,173.88 and 48,245.55 is: 66,578.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,531.79 : 122,173.88 = 48,245.55 : x
  2. Step 2: Convert to fraction form
    88,531.79/122,173.88 = 48,245.55/x
  3. Step 3: Cross multiply
    88,531.79x = 122,173.88 × 48,245.55
  4. Step 4: Simplify right side
    88,531.79x = 5,894,346,156.85
  5. Step 5: Solve for x
    x = 5,894,346,156.85/88,531.79
  6. Step 6: Final answer
    x = 66,578.87

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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.