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Finding the Fourth Proportional to 352,603.78, 486,593.22 and 201,700.78

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Solution

The fourth proportional to 352,603.78, 486,593.22 and 201,700.78 is: 278,347.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,603.78 : 486,593.22 = 201,700.78 : x
  2. Step 2: Convert to fraction form
    352,603.78/486,593.22 = 201,700.78/x
  3. Step 3: Cross multiply
    352,603.78x = 486,593.22 × 201,700.78
  4. Step 4: Simplify right side
    352,603.78x = 98,146,232,016.71
  5. Step 5: Solve for x
    x = 98,146,232,016.71/352,603.78
  6. Step 6: Final answer
    x = 278,347.08

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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.