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Finding the Fourth Proportional to 68,524.62, 102,838.86 and 29,109.39

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Solution

The fourth proportional to 68,524.62, 102,838.86 and 29,109.39 is: 43,686.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,524.62 : 102,838.86 = 29,109.39 : x
  2. Step 2: Convert to fraction form
    68,524.62/102,838.86 = 29,109.39/x
  3. Step 3: Cross multiply
    68,524.62x = 102,838.86 × 29,109.39
  4. Step 4: Simplify right side
    68,524.62x = 2,993,576,482.90
  5. Step 5: Solve for x
    x = 2,993,576,482.90/68,524.62
  6. Step 6: Final answer
    x = 43,686.14

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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.