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Finding the Fourth Proportional to 200,065.14, 275,958.90 and 119,429.64

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Solution

The fourth proportional to 200,065.14, 275,958.90 and 119,429.64 is: 164,734.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,065.14 : 275,958.90 = 119,429.64 : x
  2. Step 2: Convert to fraction form
    200,065.14/275,958.90 = 119,429.64/x
  3. Step 3: Cross multiply
    200,065.14x = 275,958.90 × 119,429.64
  4. Step 4: Simplify right side
    200,065.14x = 32,957,672,081.80
  5. Step 5: Solve for x
    x = 32,957,672,081.80/200,065.14
  6. Step 6: Final answer
    x = 164,734.71

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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.