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Finding the Fourth Proportional to 73,137.76, 100,928.08 and 43,329.76

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Solution

The fourth proportional to 73,137.76, 100,928.08 and 43,329.76 is: 59,793.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,137.76 : 100,928.08 = 43,329.76 : x
  2. Step 2: Convert to fraction form
    73,137.76/100,928.08 = 43,329.76/x
  3. Step 3: Cross multiply
    73,137.76x = 100,928.08 × 43,329.76
  4. Step 4: Simplify right side
    73,137.76x = 4,373,189,483.66
  5. Step 5: Solve for x
    x = 4,373,189,483.66/73,137.76
  6. Step 6: Final answer
    x = 59,793.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.