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Finding the Fourth Proportional to 201,361.42, 302,040.77 and 68,335.33

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Solution

The fourth proportional to 201,361.42, 302,040.77 and 68,335.33 is: 102,502.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,361.42 : 302,040.77 = 68,335.33 : x
  2. Step 2: Convert to fraction form
    201,361.42/302,040.77 = 68,335.33/x
  3. Step 3: Cross multiply
    201,361.42x = 302,040.77 × 68,335.33
  4. Step 4: Simplify right side
    201,361.42x = 20,640,053,839.52
  5. Step 5: Solve for x
    x = 20,640,053,839.52/201,361.42
  6. Step 6: Final answer
    x = 102,502.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.