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Finding the Fourth Proportional to 121,177.44, 167,116 and 75,859.55

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Solution

The fourth proportional to 121,177.44, 167,116 and 75,859.55 is: 104,618.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,177.44 : 167,116 = 75,859.55 : x
  2. Step 2: Convert to fraction form
    121,177.44/167,116 = 75,859.55/x
  3. Step 3: Cross multiply
    121,177.44x = 167,116 × 75,859.55
  4. Step 4: Simplify right side
    121,177.44x = 12,677,344,557.80
  5. Step 5: Solve for x
    x = 12,677,344,557.80/121,177.44
  6. Step 6: Final answer
    x = 104,618.03

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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.