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Finding the Fourth Proportional to 68,423.94, 94,423.20 and 38,208.42

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Solution

The fourth proportional to 68,423.94, 94,423.20 and 38,208.42 is: 52,726.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,423.94 : 94,423.20 = 38,208.42 : x
  2. Step 2: Convert to fraction form
    68,423.94/94,423.20 = 38,208.42/x
  3. Step 3: Cross multiply
    68,423.94x = 94,423.20 × 38,208.42
  4. Step 4: Simplify right side
    68,423.94x = 3,607,761,283.34
  5. Step 5: Solve for x
    x = 3,607,761,283.34/68,423.94
  6. Step 6: Final answer
    x = 52,726.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.