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Finding the Fourth Proportional to 202,443.70, 303,915.15 and 127,563.70

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Solution

The fourth proportional to 202,443.70, 303,915.15 and 127,563.70 is: 191,502.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,443.70 : 303,915.15 = 127,563.70 : x
  2. Step 2: Convert to fraction form
    202,443.70/303,915.15 = 127,563.70/x
  3. Step 3: Cross multiply
    202,443.70x = 303,915.15 × 127,563.70
  4. Step 4: Simplify right side
    202,443.70x = 38,768,541,020.06
  5. Step 5: Solve for x
    x = 38,768,541,020.06/202,443.70
  6. Step 6: Final answer
    x = 191,502.83

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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.