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Finding the Fourth Proportional to 68,793.18, 94,939.14 and 38,580.45

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Solution

The fourth proportional to 68,793.18, 94,939.14 and 38,580.45 is: 53,243.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,793.18 : 94,939.14 = 38,580.45 : x
  2. Step 2: Convert to fraction form
    68,793.18/94,939.14 = 38,580.45/x
  3. Step 3: Cross multiply
    68,793.18x = 94,939.14 × 38,580.45
  4. Step 4: Simplify right side
    68,793.18x = 3,662,794,743.81
  5. Step 5: Solve for x
    x = 3,662,794,743.81/68,793.18
  6. Step 6: Final answer
    x = 53,243.57

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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.