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Finding the Fourth Proportional to 88,874.92, 122,635.50 and 57,086.92

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Solution

The fourth proportional to 88,874.92, 122,635.50 and 57,086.92 is: 78,772.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,874.92 : 122,635.50 = 57,086.92 : x
  2. Step 2: Convert to fraction form
    88,874.92/122,635.50 = 57,086.92/x
  3. Step 3: Cross multiply
    88,874.92x = 122,635.50 × 57,086.92
  4. Step 4: Simplify right side
    88,874.92x = 7,000,882,977.66
  5. Step 5: Solve for x
    x = 7,000,882,977.66/88,874.92
  6. Step 6: Final answer
    x = 78,772.31

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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.