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Finding the Fourth Proportional to 130,954.87, 196,267.96 and 55,986.90

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Solution

The fourth proportional to 130,954.87, 196,267.96 and 55,986.90 is: 83,910.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,954.87 : 196,267.96 = 55,986.90 : x
  2. Step 2: Convert to fraction form
    130,954.87/196,267.96 = 55,986.90/x
  3. Step 3: Cross multiply
    130,954.87x = 196,267.96 × 55,986.90
  4. Step 4: Simplify right side
    130,954.87x = 10,988,435,087.71
  5. Step 5: Solve for x
    x = 10,988,435,087.71/130,954.87
  6. Step 6: Final answer
    x = 83,910.09

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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.