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Finding the Fourth Proportional to 675,161.80, 1,012,613.10 and 201,862.60

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Solution

The fourth proportional to 675,161.80, 1,012,613.10 and 201,862.60 is: 302,755.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,161.80 : 1,012,613.10 = 201,862.60 : x
  2. Step 2: Convert to fraction form
    675,161.80/1,012,613.10 = 201,862.60/x
  3. Step 3: Cross multiply
    675,161.80x = 1,012,613.10 × 201,862.60
  4. Step 4: Simplify right side
    675,161.80x = 204,408,713,160.06
  5. Step 5: Solve for x
    x = 204,408,713,160.06/675,161.80
  6. Step 6: Final answer
    x = 302,755.15

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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.