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Finding the Fourth Proportional to 121,049.28, 167,045.04 and 67,334.40

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Solution

The fourth proportional to 121,049.28, 167,045.04 and 67,334.40 is: 92,919.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,049.28 : 167,045.04 = 67,334.40 : x
  2. Step 2: Convert to fraction form
    121,049.28/167,045.04 = 67,334.40/x
  3. Step 3: Cross multiply
    121,049.28x = 167,045.04 × 67,334.40
  4. Step 4: Simplify right side
    121,049.28x = 11,247,877,541.38
  5. Step 5: Solve for x
    x = 11,247,877,541.38/121,049.28
  6. Step 6: Final answer
    x = 92,919.82

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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.