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Finding the Fourth Proportional to 121,527.48, 167,719.50 and 73,769.88

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Solution

The fourth proportional to 121,527.48, 167,719.50 and 73,769.88 is: 101,809.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,527.48 : 167,719.50 = 73,769.88 : x
  2. Step 2: Convert to fraction form
    121,527.48/167,719.50 = 73,769.88/x
  3. Step 3: Cross multiply
    121,527.48x = 167,719.50 × 73,769.88
  4. Step 4: Simplify right side
    121,527.48x = 12,372,647,388.66
  5. Step 5: Solve for x
    x = 12,372,647,388.66/121,527.48
  6. Step 6: Final answer
    x = 101,809.46

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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.