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Finding the Fourth Proportional to 68,496.31, 102,691.59 and 43,484.32

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Solution

The fourth proportional to 68,496.31, 102,691.59 and 43,484.32 is: 65,192.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,496.31 : 102,691.59 = 43,484.32 : x
  2. Step 2: Convert to fraction form
    68,496.31/102,691.59 = 43,484.32/x
  3. Step 3: Cross multiply
    68,496.31x = 102,691.59 × 43,484.32
  4. Step 4: Simplify right side
    68,496.31x = 4,465,473,960.87
  5. Step 5: Solve for x
    x = 4,465,473,960.87/68,496.31
  6. Step 6: Final answer
    x = 65,192.91

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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.