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Finding the Fourth Proportional to 225,546.68, 338,264.66 and 99,218.72

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Solution

The fourth proportional to 225,546.68, 338,264.66 and 99,218.72 is: 148,803.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,546.68 : 338,264.66 = 99,218.72 : x
  2. Step 2: Convert to fraction form
    225,546.68/338,264.66 = 99,218.72/x
  3. Step 3: Cross multiply
    225,546.68x = 338,264.66 × 99,218.72
  4. Step 4: Simplify right side
    225,546.68x = 33,562,187,122.04
  5. Step 5: Solve for x
    x = 33,562,187,122.04/225,546.68
  6. Step 6: Final answer
    x = 148,803.73

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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.