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Finding the Fourth Proportional to 68,626.68, 102,918.12 and 35,342.38

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Solution

The fourth proportional to 68,626.68, 102,918.12 and 35,342.38 is: 53,002.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,626.68 : 102,918.12 = 35,342.38 : x
  2. Step 2: Convert to fraction form
    68,626.68/102,918.12 = 35,342.38/x
  3. Step 3: Cross multiply
    68,626.68x = 102,918.12 × 35,342.38
  4. Step 4: Simplify right side
    68,626.68x = 3,637,371,305.93
  5. Step 5: Solve for x
    x = 3,637,371,305.93/68,626.68
  6. Step 6: Final answer
    x = 53,002.29

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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.