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Finding the Fourth Proportional to 121,081.55, 167,084.24 and 67,364.55

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Solution

The fourth proportional to 121,081.55, 167,084.24 and 67,364.55 is: 92,958.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,081.55 : 167,084.24 = 67,364.55 : x
  2. Step 2: Convert to fraction form
    121,081.55/167,084.24 = 67,364.55/x
  3. Step 3: Cross multiply
    121,081.55x = 167,084.24 × 67,364.55
  4. Step 4: Simplify right side
    121,081.55x = 11,255,554,302.87
  5. Step 5: Solve for x
    x = 11,255,554,302.87/121,081.55
  6. Step 6: Final answer
    x = 92,958.46

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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.