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Finding the Fourth Proportional to 68,681.95, 94,728.97 and 60,169.29

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Solution

The fourth proportional to 68,681.95, 94,728.97 and 60,169.29 is: 82,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,681.95 : 94,728.97 = 60,169.29 : x
  2. Step 2: Convert to fraction form
    68,681.95/94,728.97 = 60,169.29/x
  3. Step 3: Cross multiply
    68,681.95x = 94,728.97 × 60,169.29
  4. Step 4: Simplify right side
    68,681.95x = 5,699,775,177.57
  5. Step 5: Solve for x
    x = 5,699,775,177.57/68,681.95
  6. Step 6: Final answer
    x = 82,987.96

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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.