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Finding the Fourth Proportional to 68,694.95, 94,705.96 and 58,730.43

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Solution

The fourth proportional to 68,694.95, 94,705.96 and 58,730.43 is: 80,968.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,694.95 : 94,705.96 = 58,730.43 : x
  2. Step 2: Convert to fraction form
    68,694.95/94,705.96 = 58,730.43/x
  3. Step 3: Cross multiply
    68,694.95x = 94,705.96 × 58,730.43
  4. Step 4: Simplify right side
    68,694.95x = 5,562,121,460.71
  5. Step 5: Solve for x
    x = 5,562,121,460.71/68,694.95
  6. Step 6: Final answer
    x = 80,968.42

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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.