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Finding the Fourth Proportional to 202,256.20, 303,633.90 and 127,376.20

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Solution

The fourth proportional to 202,256.20, 303,633.90 and 127,376.20 is: 191,221.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,256.20 : 303,633.90 = 127,376.20 : x
  2. Step 2: Convert to fraction form
    202,256.20/303,633.90 = 127,376.20/x
  3. Step 3: Cross multiply
    202,256.20x = 303,633.90 × 127,376.20
  4. Step 4: Simplify right side
    202,256.20x = 38,675,732,373.18
  5. Step 5: Solve for x
    x = 38,675,732,373.18/202,256.20
  6. Step 6: Final answer
    x = 191,221.49

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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.