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Finding the Fourth Proportional to 68,368.86, 94,391.82 and 52,422.66

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Solution

The fourth proportional to 68,368.86, 94,391.82 and 52,422.66 is: 72,376.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,368.86 : 94,391.82 = 52,422.66 : x
  2. Step 2: Convert to fraction form
    68,368.86/94,391.82 = 52,422.66/x
  3. Step 3: Cross multiply
    68,368.86x = 94,391.82 × 52,422.66
  4. Step 4: Simplify right side
    68,368.86x = 4,948,270,286.64
  5. Step 5: Solve for x
    x = 4,948,270,286.64/68,368.86
  6. Step 6: Final answer
    x = 72,376.08

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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.