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Finding the Fourth Proportional to 73,847.70, 110,699.55 and 42,225.30

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Solution

The fourth proportional to 73,847.70, 110,699.55 and 42,225.30 is: 63,296.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,847.70 : 110,699.55 = 42,225.30 : x
  2. Step 2: Convert to fraction form
    73,847.70/110,699.55 = 42,225.30/x
  3. Step 3: Cross multiply
    73,847.70x = 110,699.55 × 42,225.30
  4. Step 4: Simplify right side
    73,847.70x = 4,674,321,708.62
  5. Step 5: Solve for x
    x = 4,674,321,708.62/73,847.70
  6. Step 6: Final answer
    x = 63,296.78

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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.