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Finding the Fourth Proportional to 78,163.91, 117,233.62 and 24,848.90

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Solution

The fourth proportional to 78,163.91, 117,233.62 and 24,848.90 is: 37,269.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,163.91 : 117,233.62 = 24,848.90 : x
  2. Step 2: Convert to fraction form
    78,163.91/117,233.62 = 24,848.90/x
  3. Step 3: Cross multiply
    78,163.91x = 117,233.62 × 24,848.90
  4. Step 4: Simplify right side
    78,163.91x = 2,913,126,375.77
  5. Step 5: Solve for x
    x = 2,913,126,375.77/78,163.91
  6. Step 6: Final answer
    x = 37,269.46

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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.