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Finding the Fourth Proportional to 73,956.60, 111,007.80 and 36,558.90

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Solution

The fourth proportional to 73,956.60, 111,007.80 and 36,558.90 is: 54,874.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,956.60 : 111,007.80 = 36,558.90 : x
  2. Step 2: Convert to fraction form
    73,956.60/111,007.80 = 36,558.90/x
  3. Step 3: Cross multiply
    73,956.60x = 111,007.80 × 36,558.90
  4. Step 4: Simplify right side
    73,956.60x = 4,058,323,059.42
  5. Step 5: Solve for x
    x = 4,058,323,059.42/73,956.60
  6. Step 6: Final answer
    x = 54,874.39

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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.