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Finding the Fourth Proportional to 111,616.40, 167,424.60 and 74,226.80

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Solution

The fourth proportional to 111,616.40, 167,424.60 and 74,226.80 is: 111,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,616.40 : 167,424.60 = 74,226.80 : x
  2. Step 2: Convert to fraction form
    111,616.40/167,424.60 = 74,226.80/x
  3. Step 3: Cross multiply
    111,616.40x = 167,424.60 × 74,226.80
  4. Step 4: Simplify right side
    111,616.40x = 12,427,392,299.28
  5. Step 5: Solve for x
    x = 12,427,392,299.28/111,616.40
  6. Step 6: Final answer
    x = 111,340.20

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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.