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Finding the Fourth Proportional to 68,947.93, 103,364.47 and 26,818.11

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Solution

The fourth proportional to 68,947.93, 103,364.47 and 26,818.11 is: 40,204.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,947.93 : 103,364.47 = 26,818.11 : x
  2. Step 2: Convert to fraction form
    68,947.93/103,364.47 = 26,818.11/x
  3. Step 3: Cross multiply
    68,947.93x = 103,364.47 × 26,818.11
  4. Step 4: Simplify right side
    68,947.93x = 2,772,039,726.55
  5. Step 5: Solve for x
    x = 2,772,039,726.55/68,947.93
  6. Step 6: Final answer
    x = 40,204.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.