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Finding the Fourth Proportional to 121,446.93, 167,600.70 and 67,734.21

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Solution

The fourth proportional to 121,446.93, 167,600.70 and 67,734.21 is: 93,475.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,446.93 : 167,600.70 = 67,734.21 : x
  2. Step 2: Convert to fraction form
    121,446.93/167,600.70 = 67,734.21/x
  3. Step 3: Cross multiply
    121,446.93x = 167,600.70 × 67,734.21
  4. Step 4: Simplify right side
    121,446.93x = 11,352,301,009.95
  5. Step 5: Solve for x
    x = 11,352,301,009.95/121,446.93
  6. Step 6: Final answer
    x = 93,475.41

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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.