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Finding the Fourth Proportional to 88,777.80, 122,512.55 and 48,491.55

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Solution

The fourth proportional to 88,777.80, 122,512.55 and 48,491.55 is: 66,917.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,777.80 : 122,512.55 = 48,491.55 : x
  2. Step 2: Convert to fraction form
    88,777.80/122,512.55 = 48,491.55/x
  3. Step 3: Cross multiply
    88,777.80x = 122,512.55 × 48,491.55
  4. Step 4: Simplify right side
    88,777.80x = 5,940,823,443.95
  5. Step 5: Solve for x
    x = 5,940,823,443.95/88,777.80
  6. Step 6: Final answer
    x = 66,917.89

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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.