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Finding the Fourth Proportional to 77,796, 107,352.10 and 43,793.62

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Solution

The fourth proportional to 77,796, 107,352.10 and 43,793.62 is: 60,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,796 : 107,352.10 = 43,793.62 : x
  2. Step 2: Convert to fraction form
    77,796/107,352.10 = 43,793.62/x
  3. Step 3: Cross multiply
    77,796x = 107,352.10 × 43,793.62
  4. Step 4: Simplify right side
    77,796x = 4,701,337,073.60
  5. Step 5: Solve for x
    x = 4,701,337,073.60/77,796
  6. Step 6: Final answer
    x = 60,431.60

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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.