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Finding the Fourth Proportional to 63,872.65, 88,146.99 and 35,578.36

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Solution

The fourth proportional to 63,872.65, 88,146.99 and 35,578.36 is: 49,099.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,872.65 : 88,146.99 = 35,578.36 : x
  2. Step 2: Convert to fraction form
    63,872.65/88,146.99 = 35,578.36/x
  3. Step 3: Cross multiply
    63,872.65x = 88,146.99 × 35,578.36
  4. Step 4: Simplify right side
    63,872.65x = 3,136,125,343.14
  5. Step 5: Solve for x
    x = 3,136,125,343.14/63,872.65
  6. Step 6: Final answer
    x = 49,099.66

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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.