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Finding the Fourth Proportional to 68,569.68, 102,865.32 and 29,127

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Solution

The fourth proportional to 68,569.68, 102,865.32 and 29,127 is: 43,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,569.68 : 102,865.32 = 29,127 : x
  2. Step 2: Convert to fraction form
    68,569.68/102,865.32 = 29,127/x
  3. Step 3: Cross multiply
    68,569.68x = 102,865.32 × 29,127
  4. Step 4: Simplify right side
    68,569.68x = 2,996,158,175.64
  5. Step 5: Solve for x
    x = 2,996,158,175.64/68,569.68
  6. Step 6: Final answer
    x = 43,695.09

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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.