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Finding the Fourth Proportional to 363,795.20, 545,667.39 and 136,047.48

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Solution

The fourth proportional to 363,795.20, 545,667.39 and 136,047.48 is: 204,061.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,795.20 : 545,667.39 = 136,047.48 : x
  2. Step 2: Convert to fraction form
    363,795.20/545,667.39 = 136,047.48/x
  3. Step 3: Cross multiply
    363,795.20x = 545,667.39 × 136,047.48
  4. Step 4: Simplify right side
    363,795.20x = 74,236,673,327.68
  5. Step 5: Solve for x
    x = 74,236,673,327.68/363,795.20
  6. Step 6: Final answer
    x = 204,061.72

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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.