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Finding the Fourth Proportional to 136,412.00, 188,180.87 and 91,150.67

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Solution

The fourth proportional to 136,412.00, 188,180.87 and 91,150.67 is: 125,742.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,412.00 : 188,180.87 = 91,150.67 : x
  2. Step 2: Convert to fraction form
    136,412.00/188,180.87 = 91,150.67/x
  3. Step 3: Cross multiply
    136,412.00x = 188,180.87 × 91,150.67
  4. Step 4: Simplify right side
    136,412.00x = 17,152,811,850.59
  5. Step 5: Solve for x
    x = 17,152,811,850.59/136,412.00
  6. Step 6: Final answer
    x = 125,742.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.