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Finding the Fourth Proportional to 202,452.70, 303,928.65 and 127,572.70

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Solution

The fourth proportional to 202,452.70, 303,928.65 and 127,572.70 is: 191,516.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,452.70 : 303,928.65 = 127,572.70 : x
  2. Step 2: Convert to fraction form
    202,452.70/303,928.65 = 127,572.70/x
  3. Step 3: Cross multiply
    202,452.70x = 303,928.65 × 127,572.70
  4. Step 4: Simplify right side
    202,452.70x = 38,772,998,487.86
  5. Step 5: Solve for x
    x = 38,772,998,487.86/202,452.70
  6. Step 6: Final answer
    x = 191,516.33

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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.