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Finding the Fourth Proportional to 69,944.51, 104,174.86 and 69,605.53

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Solution

The fourth proportional to 69,944.51, 104,174.86 and 69,605.53 is: 103,669.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,944.51 : 104,174.86 = 69,605.53 : x
  2. Step 2: Convert to fraction form
    69,944.51/104,174.86 = 69,605.53/x
  3. Step 3: Cross multiply
    69,944.51x = 104,174.86 × 69,605.53
  4. Step 4: Simplify right side
    69,944.51x = 7,251,146,039.04
  5. Step 5: Solve for x
    x = 7,251,146,039.04/69,944.51
  6. Step 6: Final answer
    x = 103,669.98

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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.