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Finding the Fourth Proportional to 68,243.79, 94,126.30 and 45,231.99

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Solution

The fourth proportional to 68,243.79, 94,126.30 and 45,231.99 is: 62,386.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,243.79 : 94,126.30 = 45,231.99 : x
  2. Step 2: Convert to fraction form
    68,243.79/94,126.30 = 45,231.99/x
  3. Step 3: Cross multiply
    68,243.79x = 94,126.30 × 45,231.99
  4. Step 4: Simplify right side
    68,243.79x = 4,257,520,442.90
  5. Step 5: Solve for x
    x = 4,257,520,442.90/68,243.79
  6. Step 6: Final answer
    x = 62,386.93

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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.