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Finding the Fourth Proportional to 247,165.20, 370,747.80 and 162,965.70

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Solution

The fourth proportional to 247,165.20, 370,747.80 and 162,965.70 is: 244,448.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,165.20 : 370,747.80 = 162,965.70 : x
  2. Step 2: Convert to fraction form
    247,165.20/370,747.80 = 162,965.70/x
  3. Step 3: Cross multiply
    247,165.20x = 370,747.80 × 162,965.70
  4. Step 4: Simplify right side
    247,165.20x = 60,419,174,750.46
  5. Step 5: Solve for x
    x = 60,419,174,750.46/247,165.20
  6. Step 6: Final answer
    x = 244,448.55

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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.