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Finding the Fourth Proportional to 135,230.92, 186,614.22 and 74,800.60

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Solution

The fourth proportional to 135,230.92, 186,614.22 and 74,800.60 is: 103,222.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,230.92 : 186,614.22 = 74,800.60 : x
  2. Step 2: Convert to fraction form
    135,230.92/186,614.22 = 74,800.60/x
  3. Step 3: Cross multiply
    135,230.92x = 186,614.22 × 74,800.60
  4. Step 4: Simplify right side
    135,230.92x = 13,958,855,624.53
  5. Step 5: Solve for x
    x = 13,958,855,624.53/135,230.92
  6. Step 6: Final answer
    x = 103,222.37

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1.5x scale

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.