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Finding the Fourth Proportional to 68,445.69, 94,454.04 and 38,231.43

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Solution

The fourth proportional to 68,445.69, 94,454.04 and 38,231.43 is: 52,758.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,445.69 : 94,454.04 = 38,231.43 : x
  2. Step 2: Convert to fraction form
    68,445.69/94,454.04 = 38,231.43/x
  3. Step 3: Cross multiply
    68,445.69x = 94,454.04 × 38,231.43
  4. Step 4: Simplify right side
    68,445.69x = 3,611,113,018.48
  5. Step 5: Solve for x
    x = 3,611,113,018.48/68,445.69
  6. Step 6: Final answer
    x = 52,758.81

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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.