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Finding the Fourth Proportional to 352,567.61, 486,543.28 and 191,422.68

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Solution

The fourth proportional to 352,567.61, 486,543.28 and 191,422.68 is: 264,163.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,567.61 : 486,543.28 = 191,422.68 : x
  2. Step 2: Convert to fraction form
    352,567.61/486,543.28 = 191,422.68/x
  3. Step 3: Cross multiply
    352,567.61x = 486,543.28 × 191,422.68
  4. Step 4: Simplify right side
    352,567.61x = 93,135,418,593.59
  5. Step 5: Solve for x
    x = 93,135,418,593.59/352,567.61
  6. Step 6: Final answer
    x = 264,163.29

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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.