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Finding the Fourth Proportional to 202,720.80, 303,979.20 and 62,461.20

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Solution

The fourth proportional to 202,720.80, 303,979.20 and 62,461.20 is: 93,660.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,720.80 : 303,979.20 = 62,461.20 : x
  2. Step 2: Convert to fraction form
    202,720.80/303,979.20 = 62,461.20/x
  3. Step 3: Cross multiply
    202,720.80x = 303,979.20 × 62,461.20
  4. Step 4: Simplify right side
    202,720.80x = 18,986,905,607.04
  5. Step 5: Solve for x
    x = 18,986,905,607.04/202,720.80
  6. Step 6: Final answer
    x = 93,660.37

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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.