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Finding the Fourth Proportional to 88,122.99, 121,672.92 and 54,177

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Solution

The fourth proportional to 88,122.99, 121,672.92 and 54,177 is: 74,803.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,122.99 : 121,672.92 = 54,177 : x
  2. Step 2: Convert to fraction form
    88,122.99/121,672.92 = 54,177/x
  3. Step 3: Cross multiply
    88,122.99x = 121,672.92 × 54,177
  4. Step 4: Simplify right side
    88,122.99x = 6,591,873,786.84
  5. Step 5: Solve for x
    x = 6,591,873,786.84/88,122.99
  6. Step 6: Final answer
    x = 74,803.11

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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.