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Finding the Fourth Proportional to 169,641.49, 254,074.56 and 80,957.28

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Solution

The fourth proportional to 169,641.49, 254,074.56 and 80,957.28 is: 121,250.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,641.49 : 254,074.56 = 80,957.28 : x
  2. Step 2: Convert to fraction form
    169,641.49/254,074.56 = 80,957.28/x
  3. Step 3: Cross multiply
    169,641.49x = 254,074.56 × 80,957.28
  4. Step 4: Simplify right side
    169,641.49x = 20,569,184,024.42
  5. Step 5: Solve for x
    x = 20,569,184,024.42/169,641.49
  6. Step 6: Final answer
    x = 121,250.90

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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.