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Finding the Fourth Proportional to 68,894.93, 95,068.80 and 40,217.08

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Solution

The fourth proportional to 68,894.93, 95,068.80 and 40,217.08 is: 55,495.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,894.93 : 95,068.80 = 40,217.08 : x
  2. Step 2: Convert to fraction form
    68,894.93/95,068.80 = 40,217.08/x
  3. Step 3: Cross multiply
    68,894.93x = 95,068.80 × 40,217.08
  4. Step 4: Simplify right side
    68,894.93x = 3,823,389,535.10
  5. Step 5: Solve for x
    x = 3,823,389,535.10/68,894.93
  6. Step 6: Final answer
    x = 55,495.95

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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.