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Finding the Fourth Proportional to 111,039.70, 166,574.15 and 58,452.07

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Solution

The fourth proportional to 111,039.70, 166,574.15 and 58,452.07 is: 87,685.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,039.70 : 166,574.15 = 58,452.07 : x
  2. Step 2: Convert to fraction form
    111,039.70/166,574.15 = 58,452.07/x
  3. Step 3: Cross multiply
    111,039.70x = 166,574.15 × 58,452.07
  4. Step 4: Simplify right side
    111,039.70x = 9,736,603,583.73
  5. Step 5: Solve for x
    x = 9,736,603,583.73/111,039.70
  6. Step 6: Final answer
    x = 87,685.79

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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.