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Finding the Fourth Proportional to 259,887.29, 358,640.60 and 145,167.53

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Solution

The fourth proportional to 259,887.29, 358,640.60 and 145,167.53 is: 200,329.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,887.29 : 358,640.60 = 145,167.53 : x
  2. Step 2: Convert to fraction form
    259,887.29/358,640.60 = 145,167.53/x
  3. Step 3: Cross multiply
    259,887.29x = 358,640.60 × 145,167.53
  4. Step 4: Simplify right side
    259,887.29x = 52,062,967,540.68
  5. Step 5: Solve for x
    x = 52,062,967,540.68/259,887.29
  6. Step 6: Final answer
    x = 200,329.03

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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.