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Finding the Fourth Proportional to 69,361.17, 95,718.75 and 39,147.77

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Solution

The fourth proportional to 69,361.17, 95,718.75 and 39,147.77 is: 54,024.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,361.17 : 95,718.75 = 39,147.77 : x
  2. Step 2: Convert to fraction form
    69,361.17/95,718.75 = 39,147.77/x
  3. Step 3: Cross multiply
    69,361.17x = 95,718.75 × 39,147.77
  4. Step 4: Simplify right side
    69,361.17x = 3,747,174,935.35
  5. Step 5: Solve for x
    x = 3,747,174,935.35/69,361.17
  6. Step 6: Final answer
    x = 54,024.10

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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.