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Finding the Fourth Proportional to 162,481.87, 243,663.09 and 55,835.56

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Solution

The fourth proportional to 162,481.87, 243,663.09 and 55,835.56 is: 83,732.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,481.87 : 243,663.09 = 55,835.56 : x
  2. Step 2: Convert to fraction form
    162,481.87/243,663.09 = 55,835.56/x
  3. Step 3: Cross multiply
    162,481.87x = 243,663.09 × 55,835.56
  4. Step 4: Simplify right side
    162,481.87x = 13,605,065,081.48
  5. Step 5: Solve for x
    x = 13,605,065,081.48/162,481.87
  6. Step 6: Final answer
    x = 83,732.82

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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.