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Finding the Fourth Proportional to 68,954.60, 95,124.79 and 58,990.08

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Solution

The fourth proportional to 68,954.60, 95,124.79 and 58,990.08 is: 81,378.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,954.60 : 95,124.79 = 58,990.08 : x
  2. Step 2: Convert to fraction form
    68,954.60/95,124.79 = 58,990.08/x
  3. Step 3: Cross multiply
    68,954.60x = 95,124.79 × 58,990.08
  4. Step 4: Simplify right side
    68,954.60x = 5,611,418,824.61
  5. Step 5: Solve for x
    x = 5,611,418,824.61/68,954.60
  6. Step 6: Final answer
    x = 81,378.46

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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.