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Finding the Fourth Proportional to 394,036.00, 591,137.10 and 127,775.82

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Solution

The fourth proportional to 394,036.00, 591,137.10 and 127,775.82 is: 191,690.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,036.00 : 591,137.10 = 127,775.82 : x
  2. Step 2: Convert to fraction form
    394,036.00/591,137.10 = 127,775.82/x
  3. Step 3: Cross multiply
    394,036.00x = 591,137.10 × 127,775.82
  4. Step 4: Simplify right side
    394,036.00x = 75,533,025,924.94
  5. Step 5: Solve for x
    x = 75,533,025,924.94/394,036.00
  6. Step 6: Final answer
    x = 191,690.67

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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.