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Finding the Fourth Proportional to 352,219.07, 486,062.31 and 201,319.31

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Solution

The fourth proportional to 352,219.07, 486,062.31 and 201,319.31 is: 277,820.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,219.07 : 486,062.31 = 201,319.31 : x
  2. Step 2: Convert to fraction form
    352,219.07/486,062.31 = 201,319.31/x
  3. Step 3: Cross multiply
    352,219.07x = 486,062.31 × 201,319.31
  4. Step 4: Simplify right side
    352,219.07x = 97,853,726,435.89
  5. Step 5: Solve for x
    x = 97,853,726,435.89/352,219.07
  6. Step 6: Final answer
    x = 277,820.64

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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.