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Finding the Fourth Proportional to 121,326.48, 167,384.52 and 73,563.12

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Solution

The fourth proportional to 121,326.48, 167,384.52 and 73,563.12 is: 101,489.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,326.48 : 167,384.52 = 73,563.12 : x
  2. Step 2: Convert to fraction form
    121,326.48/167,384.52 = 73,563.12/x
  3. Step 3: Cross multiply
    121,326.48x = 167,384.52 × 73,563.12
  4. Step 4: Simplify right side
    121,326.48x = 12,313,327,530.90
  5. Step 5: Solve for x
    x = 12,313,327,530.90/121,326.48
  6. Step 6: Final answer
    x = 101,489.20

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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.