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Finding the Fourth Proportional to 352,764.88, 486,820.76 and 199,799.26

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Solution

The fourth proportional to 352,764.88, 486,820.76 and 199,799.26 is: 275,725.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,764.88 : 486,820.76 = 199,799.26 : x
  2. Step 2: Convert to fraction form
    352,764.88/486,820.76 = 199,799.26/x
  3. Step 3: Cross multiply
    352,764.88x = 486,820.76 × 199,799.26
  4. Step 4: Simplify right side
    352,764.88x = 97,266,427,600.64
  5. Step 5: Solve for x
    x = 97,266,427,600.64/352,764.88
  6. Step 6: Final answer
    x = 275,725.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.