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Finding the Fourth Proportional to 68,731.26, 103,097.85 and 19,483.26

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Solution

The fourth proportional to 68,731.26, 103,097.85 and 19,483.26 is: 29,225.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,731.26 : 103,097.85 = 19,483.26 : x
  2. Step 2: Convert to fraction form
    68,731.26/103,097.85 = 19,483.26/x
  3. Step 3: Cross multiply
    68,731.26x = 103,097.85 × 19,483.26
  4. Step 4: Simplify right side
    68,731.26x = 2,008,682,216.99
  5. Step 5: Solve for x
    x = 2,008,682,216.99/68,731.26
  6. Step 6: Final answer
    x = 29,225.16

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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.