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Finding the Fourth Proportional to 73,487.69, 110,217.67 and 28,508.95

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Solution

The fourth proportional to 73,487.69, 110,217.67 and 28,508.95 is: 42,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,487.69 : 110,217.67 = 28,508.95 : x
  2. Step 2: Convert to fraction form
    73,487.69/110,217.67 = 28,508.95/x
  3. Step 3: Cross multiply
    73,487.69x = 110,217.67 × 28,508.95
  4. Step 4: Simplify right side
    73,487.69x = 3,142,190,043.15
  5. Step 5: Solve for x
    x = 3,142,190,043.15/73,487.69
  6. Step 6: Final answer
    x = 42,758.05

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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.