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Finding the Fourth Proportional to 73,878.76, 110,346.71 and 66,847.96

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Solution

The fourth proportional to 73,878.76, 110,346.71 and 66,847.96 is: 99,845.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,878.76 : 110,346.71 = 66,847.96 : x
  2. Step 2: Convert to fraction form
    73,878.76/110,346.71 = 66,847.96/x
  3. Step 3: Cross multiply
    73,878.76x = 110,346.71 × 66,847.96
  4. Step 4: Simplify right side
    73,878.76x = 7,376,452,456.21
  5. Step 5: Solve for x
    x = 7,376,452,456.21/73,878.76
  6. Step 6: Final answer
    x = 99,845.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.