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Finding the Fourth Proportional to 202,092.80, 303,139.20 and 166,663.40

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Solution

The fourth proportional to 202,092.80, 303,139.20 and 166,663.40 is: 249,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,092.80 : 303,139.20 = 166,663.40 : x
  2. Step 2: Convert to fraction form
    202,092.80/303,139.20 = 166,663.40/x
  3. Step 3: Cross multiply
    202,092.80x = 303,139.20 × 166,663.40
  4. Step 4: Simplify right side
    202,092.80x = 50,522,209,745.28
  5. Step 5: Solve for x
    x = 50,522,209,745.28/202,092.80
  6. Step 6: Final answer
    x = 249,995.10

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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.