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Finding the Fourth Proportional to 73,768.80, 110,627.58 and 45,645.84

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Solution

The fourth proportional to 73,768.80, 110,627.58 and 45,645.84 is: 68,452.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,768.80 : 110,627.58 = 45,645.84 : x
  2. Step 2: Convert to fraction form
    73,768.80/110,627.58 = 45,645.84/x
  3. Step 3: Cross multiply
    73,768.80x = 110,627.58 × 45,645.84
  4. Step 4: Simplify right side
    73,768.80x = 5,049,688,816.27
  5. Step 5: Solve for x
    x = 5,049,688,816.27/73,768.80
  6. Step 6: Final answer
    x = 68,452.91

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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.