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Finding the Fourth Proportional to 663,713.68, 995,574.12 and 165,077.68

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Solution

The fourth proportional to 663,713.68, 995,574.12 and 165,077.68 is: 247,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,713.68 : 995,574.12 = 165,077.68 : x
  2. Step 2: Convert to fraction form
    663,713.68/995,574.12 = 165,077.68/x
  3. Step 3: Cross multiply
    663,713.68x = 995,574.12 × 165,077.68
  4. Step 4: Simplify right side
    663,713.68x = 164,347,065,997.64
  5. Step 5: Solve for x
    x = 164,347,065,997.64/663,713.68
  6. Step 6: Final answer
    x = 247,617.42

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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.