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Finding the Fourth Proportional to 389,667.20, 584,559.20 and 165,027.20

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Solution

The fourth proportional to 389,667.20, 584,559.20 and 165,027.20 is: 247,565.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,667.20 : 584,559.20 = 165,027.20 : x
  2. Step 2: Convert to fraction form
    389,667.20/584,559.20 = 165,027.20/x
  3. Step 3: Cross multiply
    389,667.20x = 584,559.20 × 165,027.20
  4. Step 4: Simplify right side
    389,667.20x = 96,468,168,010.24
  5. Step 5: Solve for x
    x = 96,468,168,010.24/389,667.20
  6. Step 6: Final answer
    x = 247,565.53

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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.