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Finding the Fourth Proportional to 202,461.20, 303,691.80 and 191,574.80

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Solution

The fourth proportional to 202,461.20, 303,691.80 and 191,574.80 is: 287,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,461.20 : 303,691.80 = 191,574.80 : x
  2. Step 2: Convert to fraction form
    202,461.20/303,691.80 = 191,574.80/x
  3. Step 3: Cross multiply
    202,461.20x = 303,691.80 × 191,574.80
  4. Step 4: Simplify right side
    202,461.20x = 58,179,695,846.64
  5. Step 5: Solve for x
    x = 58,179,695,846.64/202,461.20
  6. Step 6: Final answer
    x = 287,362.20

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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.