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Finding the Fourth Proportional to 193,915.92, 290,877.48 and 60,793.20

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Solution

The fourth proportional to 193,915.92, 290,877.48 and 60,793.20 is: 91,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,915.92 : 290,877.48 = 60,793.20 : x
  2. Step 2: Convert to fraction form
    193,915.92/290,877.48 = 60,793.20/x
  3. Step 3: Cross multiply
    193,915.92x = 290,877.48 × 60,793.20
  4. Step 4: Simplify right side
    193,915.92x = 17,683,372,817.14
  5. Step 5: Solve for x
    x = 17,683,372,817.14/193,915.92
  6. Step 6: Final answer
    x = 91,190.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.