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Finding the Fourth Proportional to 65,361.53, 97,912.29 and 51,255.38

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Solution

The fourth proportional to 65,361.53, 97,912.29 and 51,255.38 is: 76,781.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,361.53 : 97,912.29 = 51,255.38 : x
  2. Step 2: Convert to fraction form
    65,361.53/97,912.29 = 51,255.38/x
  3. Step 3: Cross multiply
    65,361.53x = 97,912.29 × 51,255.38
  4. Step 4: Simplify right side
    65,361.53x = 5,018,532,067.61
  5. Step 5: Solve for x
    x = 5,018,532,067.61/65,361.53
  6. Step 6: Final answer
    x = 76,781.13

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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.