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Finding the Fourth Proportional to 68,701.77, 94,773.61 and 42,839.08

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Solution

The fourth proportional to 68,701.77, 94,773.61 and 42,839.08 is: 59,096.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,701.77 : 94,773.61 = 42,839.08 : x
  2. Step 2: Convert to fraction form
    68,701.77/94,773.61 = 42,839.08/x
  3. Step 3: Cross multiply
    68,701.77x = 94,773.61 × 42,839.08
  4. Step 4: Simplify right side
    68,701.77x = 4,060,014,260.68
  5. Step 5: Solve for x
    x = 4,060,014,260.68/68,701.77
  6. Step 6: Final answer
    x = 59,096.21

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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.