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Finding the Fourth Proportional to 48,378.78, 72,617.04 and 34,354.44

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Solution

The fourth proportional to 48,378.78, 72,617.04 and 34,354.44 is: 51,566.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,378.78 : 72,617.04 = 34,354.44 : x
  2. Step 2: Convert to fraction form
    48,378.78/72,617.04 = 34,354.44/x
  3. Step 3: Cross multiply
    48,378.78x = 72,617.04 × 34,354.44
  4. Step 4: Simplify right side
    48,378.78x = 2,494,717,743.66
  5. Step 5: Solve for x
    x = 2,494,717,743.66/48,378.78
  6. Step 6: Final answer
    x = 51,566.36

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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.