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Finding the Fourth Proportional to 162,630.45, 243,781.65 and 73,947.60

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Solution

The fourth proportional to 162,630.45, 243,781.65 and 73,947.60 is: 110,846.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,630.45 : 243,781.65 = 73,947.60 : x
  2. Step 2: Convert to fraction form
    162,630.45/243,781.65 = 73,947.60/x
  3. Step 3: Cross multiply
    162,630.45x = 243,781.65 × 73,947.60
  4. Step 4: Simplify right side
    162,630.45x = 18,027,067,941.54
  5. Step 5: Solve for x
    x = 18,027,067,941.54/162,630.45
  6. Step 6: Final answer
    x = 110,846.82

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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.