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Finding the Fourth Proportional to 68,578.30, 94,634.76 and 43,097.86

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Solution

The fourth proportional to 68,578.30, 94,634.76 and 43,097.86 is: 59,472.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,578.30 : 94,634.76 = 43,097.86 : x
  2. Step 2: Convert to fraction form
    68,578.30/94,634.76 = 43,097.86/x
  3. Step 3: Cross multiply
    68,578.30x = 94,634.76 × 43,097.86
  4. Step 4: Simplify right side
    68,578.30x = 4,078,555,637.61
  5. Step 5: Solve for x
    x = 4,078,555,637.61/68,578.30
  6. Step 6: Final answer
    x = 59,472.98

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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.