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Finding the Fourth Proportional to 193,540.64, 290,311 and 60,432.30

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Solution

The fourth proportional to 193,540.64, 290,311 and 60,432.30 is: 90,648.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,540.64 : 290,311 = 60,432.30 : x
  2. Step 2: Convert to fraction form
    193,540.64/290,311 = 60,432.30/x
  3. Step 3: Cross multiply
    193,540.64x = 290,311 × 60,432.30
  4. Step 4: Simplify right side
    193,540.64x = 17,544,161,445.30
  5. Step 5: Solve for x
    x = 17,544,161,445.30/193,540.64
  6. Step 6: Final answer
    x = 90,648.46

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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.