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Finding the Fourth Proportional to 68,019.24, 102,046.15 and 39,963

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Solution

The fourth proportional to 68,019.24, 102,046.15 and 39,963 is: 59,954.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,019.24 : 102,046.15 = 39,963 : x
  2. Step 2: Convert to fraction form
    68,019.24/102,046.15 = 39,963/x
  3. Step 3: Cross multiply
    68,019.24x = 102,046.15 × 39,963
  4. Step 4: Simplify right side
    68,019.24x = 4,078,070,292.45
  5. Step 5: Solve for x
    x = 4,078,070,292.45/68,019.24
  6. Step 6: Final answer
    x = 59,954.66

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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.