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Finding the Fourth Proportional to 68,801.10, 103,102.83 and 29,347.62

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Solution

The fourth proportional to 68,801.10, 103,102.83 and 29,347.62 is: 43,979.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,801.10 : 103,102.83 = 29,347.62 : x
  2. Step 2: Convert to fraction form
    68,801.10/103,102.83 = 29,347.62/x
  3. Step 3: Cross multiply
    68,801.10x = 103,102.83 × 29,347.62
  4. Step 4: Simplify right side
    68,801.10x = 3,025,822,675.76
  5. Step 5: Solve for x
    x = 3,025,822,675.76/68,801.10
  6. Step 6: Final answer
    x = 43,979.28

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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.