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Finding the Fourth Proportional to 225,616.28, 311,268.08 and 134,974.85

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Solution

The fourth proportional to 225,616.28, 311,268.08 and 134,974.85 is: 186,216.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,616.28 : 311,268.08 = 134,974.85 : x
  2. Step 2: Convert to fraction form
    225,616.28/311,268.08 = 134,974.85/x
  3. Step 3: Cross multiply
    225,616.28x = 311,268.08 × 134,974.85
  4. Step 4: Simplify right side
    225,616.28x = 42,013,361,188.88
  5. Step 5: Solve for x
    x = 42,013,361,188.88/225,616.28
  6. Step 6: Final answer
    x = 186,216.00

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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.