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Finding the Fourth Proportional to 99,706.20, 149,194.80 and 73,462.20

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Solution

The fourth proportional to 99,706.20, 149,194.80 and 73,462.20 is: 109,924.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,706.20 : 149,194.80 = 73,462.20 : x
  2. Step 2: Convert to fraction form
    99,706.20/149,194.80 = 73,462.20/x
  3. Step 3: Cross multiply
    99,706.20x = 149,194.80 × 73,462.20
  4. Step 4: Simplify right side
    99,706.20x = 10,960,178,236.56
  5. Step 5: Solve for x
    x = 10,960,178,236.56/99,706.20
  6. Step 6: Final answer
    x = 109,924.74

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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.