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Finding the Fourth Proportional to 537,690.80, 806,536.20 and 163,713.20

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Solution

The fourth proportional to 537,690.80, 806,536.20 and 163,713.20 is: 245,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,690.80 : 806,536.20 = 163,713.20 : x
  2. Step 2: Convert to fraction form
    537,690.80/806,536.20 = 163,713.20/x
  3. Step 3: Cross multiply
    537,690.80x = 806,536.20 × 163,713.20
  4. Step 4: Simplify right side
    537,690.80x = 132,040,622,217.84
  5. Step 5: Solve for x
    x = 132,040,622,217.84/537,690.80
  6. Step 6: Final answer
    x = 245,569.80

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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.