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Finding the Fourth Proportional to 121,297.68, 167,362.92 and 73,541.16

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Solution

The fourth proportional to 121,297.68, 167,362.92 and 73,541.16 is: 101,469.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,297.68 : 167,362.92 = 73,541.16 : x
  2. Step 2: Convert to fraction form
    121,297.68/167,362.92 = 73,541.16/x
  3. Step 3: Cross multiply
    121,297.68x = 167,362.92 × 73,541.16
  4. Step 4: Simplify right side
    121,297.68x = 12,308,063,277.79
  5. Step 5: Solve for x
    x = 12,308,063,277.79/121,297.68
  6. Step 6: Final answer
    x = 101,469.90

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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.