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Finding the Fourth Proportional to 121,624.67, 167,850.29 and 67,908.53

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Solution

The fourth proportional to 121,624.67, 167,850.29 and 67,908.53 is: 93,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,624.67 : 167,850.29 = 67,908.53 : x
  2. Step 2: Convert to fraction form
    121,624.67/167,850.29 = 67,908.53/x
  3. Step 3: Cross multiply
    121,624.67x = 167,850.29 × 67,908.53
  4. Step 4: Simplify right side
    121,624.67x = 11,398,467,043.37
  5. Step 5: Solve for x
    x = 11,398,467,043.37/121,624.67
  6. Step 6: Final answer
    x = 93,718.38

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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.