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Finding the Fourth Proportional to 88,392.25, 121,978.96 and 48,105.14

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Solution

The fourth proportional to 88,392.25, 121,978.96 and 48,105.14 is: 66,383.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,392.25 : 121,978.96 = 48,105.14 : x
  2. Step 2: Convert to fraction form
    88,392.25/121,978.96 = 48,105.14/x
  3. Step 3: Cross multiply
    88,392.25x = 121,978.96 × 48,105.14
  4. Step 4: Simplify right side
    88,392.25x = 5,867,814,947.85
  5. Step 5: Solve for x
    x = 5,867,814,947.85/88,392.25
  6. Step 6: Final answer
    x = 66,383.82

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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.