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Finding the Fourth Proportional to 218,843.93, 328,265.87 and 113,441.46

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Solution

The fourth proportional to 218,843.93, 328,265.87 and 113,441.46 is: 170,162.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,843.93 : 328,265.87 = 113,441.46 : x
  2. Step 2: Convert to fraction form
    218,843.93/328,265.87 = 113,441.46/x
  3. Step 3: Cross multiply
    218,843.93x = 328,265.87 × 113,441.46
  4. Step 4: Simplify right side
    218,843.93x = 37,238,958,993.76
  5. Step 5: Solve for x
    x = 37,238,958,993.76/218,843.93
  6. Step 6: Final answer
    x = 170,162.18

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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.