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Finding the Fourth Proportional to 67,106.80, 100,572.72 and 27,619.30

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Solution

The fourth proportional to 67,106.80, 100,572.72 and 27,619.30 is: 41,392.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,106.80 : 100,572.72 = 27,619.30 : x
  2. Step 2: Convert to fraction form
    67,106.80/100,572.72 = 27,619.30/x
  3. Step 3: Cross multiply
    67,106.80x = 100,572.72 × 27,619.30
  4. Step 4: Simplify right side
    67,106.80x = 2,777,748,125.50
  5. Step 5: Solve for x
    x = 2,777,748,125.50/67,106.80
  6. Step 6: Final answer
    x = 41,392.95

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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.