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Finding the Fourth Proportional to 88,873.92, 122,634.12 and 57,085.92

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Solution

The fourth proportional to 88,873.92, 122,634.12 and 57,085.92 is: 78,770.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,873.92 : 122,634.12 = 57,085.92 : x
  2. Step 2: Convert to fraction form
    88,873.92/122,634.12 = 57,085.92/x
  3. Step 3: Cross multiply
    88,873.92x = 122,634.12 × 57,085.92
  4. Step 4: Simplify right side
    88,873.92x = 7,000,681,563.59
  5. Step 5: Solve for x
    x = 7,000,681,563.59/88,873.92
  6. Step 6: Final answer
    x = 78,770.93

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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.