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Finding the Fourth Proportional to 110,805.41, 165,943.21 and 63,916.13

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Solution

The fourth proportional to 110,805.41, 165,943.21 and 63,916.13 is: 95,721.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,805.41 : 165,943.21 = 63,916.13 : x
  2. Step 2: Convert to fraction form
    110,805.41/165,943.21 = 63,916.13/x
  3. Step 3: Cross multiply
    110,805.41x = 165,943.21 × 63,916.13
  4. Step 4: Simplify right side
    110,805.41x = 10,606,447,782.98
  5. Step 5: Solve for x
    x = 10,606,447,782.98/110,805.41
  6. Step 6: Final answer
    x = 95,721.39

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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.