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Finding the Fourth Proportional to 68,407.52, 94,376.40 and 41,539.88

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Solution

The fourth proportional to 68,407.52, 94,376.40 and 41,539.88 is: 57,309.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,407.52 : 94,376.40 = 41,539.88 : x
  2. Step 2: Convert to fraction form
    68,407.52/94,376.40 = 41,539.88/x
  3. Step 3: Cross multiply
    68,407.52x = 94,376.40 × 41,539.88
  4. Step 4: Simplify right side
    68,407.52x = 3,920,384,330.83
  5. Step 5: Solve for x
    x = 3,920,384,330.83/68,407.52
  6. Step 6: Final answer
    x = 57,309.26

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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.