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Finding the Fourth Proportional to 121,475.88, 167,635.59 and 67,028.55

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Solution

The fourth proportional to 121,475.88, 167,635.59 and 67,028.55 is: 92,498.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,475.88 : 167,635.59 = 67,028.55 : x
  2. Step 2: Convert to fraction form
    121,475.88/167,635.59 = 67,028.55/x
  3. Step 3: Cross multiply
    121,475.88x = 167,635.59 × 67,028.55
  4. Step 4: Simplify right side
    121,475.88x = 11,236,370,526.09
  5. Step 5: Solve for x
    x = 11,236,370,526.09/121,475.88
  6. Step 6: Final answer
    x = 92,498.78

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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.