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Finding the Fourth Proportional to 68,261.67, 101,858.47 and 61,169.47

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Solution

The fourth proportional to 68,261.67, 101,858.47 and 61,169.47 is: 91,275.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,261.67 : 101,858.47 = 61,169.47 : x
  2. Step 2: Convert to fraction form
    68,261.67/101,858.47 = 61,169.47/x
  3. Step 3: Cross multiply
    68,261.67x = 101,858.47 × 61,169.47
  4. Step 4: Simplify right side
    68,261.67x = 6,230,628,624.91
  5. Step 5: Solve for x
    x = 6,230,628,624.91/68,261.67
  6. Step 6: Final answer
    x = 91,275.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.