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Finding the Fourth Proportional to 121,462.38, 167,618.38 and 67,750.88

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Solution

The fourth proportional to 121,462.38, 167,618.38 and 67,750.88 is: 93,496.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,462.38 : 167,618.38 = 67,750.88 : x
  2. Step 2: Convert to fraction form
    121,462.38/167,618.38 = 67,750.88/x
  3. Step 3: Cross multiply
    121,462.38x = 167,618.38 × 67,750.88
  4. Step 4: Simplify right side
    121,462.38x = 11,356,292,749.17
  5. Step 5: Solve for x
    x = 11,356,292,749.17/121,462.38
  6. Step 6: Final answer
    x = 93,496.38

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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.