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Finding the Fourth Proportional to 73,577.60, 110,437.68 and 69,581.60

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Solution

The fourth proportional to 73,577.60, 110,437.68 and 69,581.60 is: 104,439.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,577.60 : 110,437.68 = 69,581.60 : x
  2. Step 2: Convert to fraction form
    73,577.60/110,437.68 = 69,581.60/x
  3. Step 3: Cross multiply
    73,577.60x = 110,437.68 × 69,581.60
  4. Step 4: Simplify right side
    73,577.60x = 7,684,430,474.69
  5. Step 5: Solve for x
    x = 7,684,430,474.69/73,577.60
  6. Step 6: Final answer
    x = 104,439.81

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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.