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Finding the Fourth Proportional to 202,037.20, 303,142.20 and 127,214.80

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Solution

The fourth proportional to 202,037.20, 303,142.20 and 127,214.80 is: 190,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,037.20 : 303,142.20 = 127,214.80 : x
  2. Step 2: Convert to fraction form
    202,037.20/303,142.20 = 127,214.80/x
  3. Step 3: Cross multiply
    202,037.20x = 303,142.20 × 127,214.80
  4. Step 4: Simplify right side
    202,037.20x = 38,564,174,344.56
  5. Step 5: Solve for x
    x = 38,564,174,344.56/202,037.20
  6. Step 6: Final answer
    x = 190,876.60

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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.