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Finding the Fourth Proportional to 171,276.56, 256,966.72 and 121,452.96

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Solution

The fourth proportional to 171,276.56, 256,966.72 and 121,452.96 is: 182,216.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,276.56 : 256,966.72 = 121,452.96 : x
  2. Step 2: Convert to fraction form
    171,276.56/256,966.72 = 121,452.96/x
  3. Step 3: Cross multiply
    171,276.56x = 256,966.72 × 121,452.96
  4. Step 4: Simplify right side
    171,276.56x = 31,209,368,765.49
  5. Step 5: Solve for x
    x = 31,209,368,765.49/171,276.56
  6. Step 6: Final answer
    x = 182,216.23

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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.