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Finding the Fourth Proportional to 663,663.75, 995,499.27 and 165,027.75

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Solution

The fourth proportional to 663,663.75, 995,499.27 and 165,027.75 is: 247,542.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,663.75 : 995,499.27 = 165,027.75 : x
  2. Step 2: Convert to fraction form
    663,663.75/995,499.27 = 165,027.75/x
  3. Step 3: Cross multiply
    663,663.75x = 995,499.27 × 165,027.75
  4. Step 4: Simplify right side
    663,663.75x = 164,285,004,654.74
  5. Step 5: Solve for x
    x = 164,285,004,654.74/663,663.75
  6. Step 6: Final answer
    x = 247,542.53

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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.