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Finding the Fourth Proportional to 68,107.95, 93,953.66 and 39,797.24

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Solution

The fourth proportional to 68,107.95, 93,953.66 and 39,797.24 is: 54,899.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,107.95 : 93,953.66 = 39,797.24 : x
  2. Step 2: Convert to fraction form
    68,107.95/93,953.66 = 39,797.24/x
  3. Step 3: Cross multiply
    68,107.95x = 93,953.66 × 39,797.24
  4. Step 4: Simplify right side
    68,107.95x = 3,739,095,687.14
  5. Step 5: Solve for x
    x = 3,739,095,687.14/68,107.95
  6. Step 6: Final answer
    x = 54,899.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.