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Finding the Fourth Proportional to 121,700.03, 167,945.61 and 67,250.69

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Solution

The fourth proportional to 121,700.03, 167,945.61 and 67,250.69 is: 92,805.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,700.03 : 167,945.61 = 67,250.69 : x
  2. Step 2: Convert to fraction form
    121,700.03/167,945.61 = 67,250.69/x
  3. Step 3: Cross multiply
    121,700.03x = 167,945.61 × 67,250.69
  4. Step 4: Simplify right side
    121,700.03x = 11,294,457,315.24
  5. Step 5: Solve for x
    x = 11,294,457,315.24/121,700.03
  6. Step 6: Final answer
    x = 92,805.71

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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.