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Finding the Fourth Proportional to 88,956.82, 122,766.60 and 57,135.70

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Solution

The fourth proportional to 88,956.82, 122,766.60 and 57,135.70 is: 78,851.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,956.82 : 122,766.60 = 57,135.70 : x
  2. Step 2: Convert to fraction form
    88,956.82/122,766.60 = 57,135.70/x
  3. Step 3: Cross multiply
    88,956.82x = 122,766.60 × 57,135.70
  4. Step 4: Simplify right side
    88,956.82x = 7,014,355,627.62
  5. Step 5: Solve for x
    x = 7,014,355,627.62/88,956.82
  6. Step 6: Final answer
    x = 78,851.24

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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.