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Finding the Fourth Proportional to 109,049.20, 163,573.80 and 73,619.80

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Solution

The fourth proportional to 109,049.20, 163,573.80 and 73,619.80 is: 110,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,049.20 : 163,573.80 = 73,619.80 : x
  2. Step 2: Convert to fraction form
    109,049.20/163,573.80 = 73,619.80/x
  3. Step 3: Cross multiply
    109,049.20x = 163,573.80 × 73,619.80
  4. Step 4: Simplify right side
    109,049.20x = 12,042,270,441.24
  5. Step 5: Solve for x
    x = 12,042,270,441.24/109,049.20
  6. Step 6: Final answer
    x = 110,429.70

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1.5x scale

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.