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Finding the Fourth Proportional to 123,732, 170,794.44 and 73,431

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Solution

The fourth proportional to 123,732, 170,794.44 and 73,431 is: 101,361.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,732 : 170,794.44 = 73,431 : x
  2. Step 2: Convert to fraction form
    123,732/170,794.44 = 73,431/x
  3. Step 3: Cross multiply
    123,732x = 170,794.44 × 73,431
  4. Step 4: Simplify right side
    123,732x = 12,541,606,523.64
  5. Step 5: Solve for x
    x = 12,541,606,523.64/123,732
  6. Step 6: Final answer
    x = 101,361.06

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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.