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Finding the Fourth Proportional to 73,539.60, 110,267.76 and 67,270.20

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Solution

The fourth proportional to 73,539.60, 110,267.76 and 67,270.20 is: 100,867.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,539.60 : 110,267.76 = 67,270.20 : x
  2. Step 2: Convert to fraction form
    73,539.60/110,267.76 = 67,270.20/x
  3. Step 3: Cross multiply
    73,539.60x = 110,267.76 × 67,270.20
  4. Step 4: Simplify right side
    73,539.60x = 7,417,734,268.75
  5. Step 5: Solve for x
    x = 7,417,734,268.75/73,539.60
  6. Step 6: Final answer
    x = 100,867.21

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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.