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Finding the Fourth Proportional to 100,963.21, 151,444.82 and 34,369.06

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Solution

The fourth proportional to 100,963.21, 151,444.82 and 34,369.06 is: 51,553.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,963.21 : 151,444.82 = 34,369.06 : x
  2. Step 2: Convert to fraction form
    100,963.21/151,444.82 = 34,369.06/x
  3. Step 3: Cross multiply
    100,963.21x = 151,444.82 × 34,369.06
  4. Step 4: Simplify right side
    100,963.21x = 5,205,015,933.42
  5. Step 5: Solve for x
    x = 5,205,015,933.42/100,963.21
  6. Step 6: Final answer
    x = 51,553.59

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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.