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Finding the Fourth Proportional to 69,318.36, 104,035.86 and 64,944.36

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Solution

The fourth proportional to 69,318.36, 104,035.86 and 64,944.36 is: 97,471.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,318.36 : 104,035.86 = 64,944.36 : x
  2. Step 2: Convert to fraction form
    69,318.36/104,035.86 = 64,944.36/x
  3. Step 3: Cross multiply
    69,318.36x = 104,035.86 × 64,944.36
  4. Step 4: Simplify right side
    69,318.36x = 6,756,542,344.75
  5. Step 5: Solve for x
    x = 6,756,542,344.75/69,318.36
  6. Step 6: Final answer
    x = 97,471.18

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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.