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Finding the Fourth Proportional to 324,086.40, 447,264.70 and 178,921.04

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Solution

The fourth proportional to 324,086.40, 447,264.70 and 178,921.04 is: 246,925.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,086.40 : 447,264.70 = 178,921.04 : x
  2. Step 2: Convert to fraction form
    324,086.40/447,264.70 = 178,921.04/x
  3. Step 3: Cross multiply
    324,086.40x = 447,264.70 × 178,921.04
  4. Step 4: Simplify right side
    324,086.40x = 80,025,062,595.66
  5. Step 5: Solve for x
    x = 80,025,062,595.66/324,086.40
  6. Step 6: Final answer
    x = 246,925.09

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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.