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Finding the Fourth Proportional to 169,256.40, 253,769.40 and 80,552.40

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Solution

The fourth proportional to 169,256.40, 253,769.40 and 80,552.40 is: 120,773.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,256.40 : 253,769.40 = 80,552.40 : x
  2. Step 2: Convert to fraction form
    169,256.40/253,769.40 = 80,552.40/x
  3. Step 3: Cross multiply
    169,256.40x = 253,769.40 × 80,552.40
  4. Step 4: Simplify right side
    169,256.40x = 20,441,734,216.56
  5. Step 5: Solve for x
    x = 20,441,734,216.56/169,256.40
  6. Step 6: Final answer
    x = 120,773.77

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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.