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Finding the Fourth Proportional to 169,470.80, 254,040.96 and 80,700.48

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Solution

The fourth proportional to 169,470.80, 254,040.96 and 80,700.48 is: 120,972.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,470.80 : 254,040.96 = 80,700.48 : x
  2. Step 2: Convert to fraction form
    169,470.80/254,040.96 = 80,700.48/x
  3. Step 3: Cross multiply
    169,470.80x = 254,040.96 × 80,700.48
  4. Step 4: Simplify right side
    169,470.80x = 20,501,227,411.66
  5. Step 5: Solve for x
    x = 20,501,227,411.66/169,470.80
  6. Step 6: Final answer
    x = 120,972.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.