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Finding the Fourth Proportional to 165,163.31, 247,657.47 and 65,319.47

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Solution

The fourth proportional to 165,163.31, 247,657.47 and 65,319.47 is: 97,944.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,163.31 : 247,657.47 = 65,319.47 : x
  2. Step 2: Convert to fraction form
    165,163.31/247,657.47 = 65,319.47/x
  3. Step 3: Cross multiply
    165,163.31x = 247,657.47 × 65,319.47
  4. Step 4: Simplify right side
    165,163.31x = 16,176,853,443.65
  5. Step 5: Solve for x
    x = 16,176,853,443.65/165,163.31
  6. Step 6: Final answer
    x = 97,944.60

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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.