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Finding the Fourth Proportional to 200,734.20, 300,755.70 and 169,630.20

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Solution

The fourth proportional to 200,734.20, 300,755.70 and 169,630.20 is: 254,153.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,734.20 : 300,755.70 = 169,630.20 : x
  2. Step 2: Convert to fraction form
    200,734.20/300,755.70 = 169,630.20/x
  3. Step 3: Cross multiply
    200,734.20x = 300,755.70 × 169,630.20
  4. Step 4: Simplify right side
    200,734.20x = 51,017,249,542.14
  5. Step 5: Solve for x
    x = 51,017,249,542.14/200,734.20
  6. Step 6: Final answer
    x = 254,153.25

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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.