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Finding the Fourth Proportional to 333,079.36, 499,535.80 and 130,716.56

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Solution

The fourth proportional to 333,079.36, 499,535.80 and 130,716.56 is: 196,042.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,079.36 : 499,535.80 = 130,716.56 : x
  2. Step 2: Convert to fraction form
    333,079.36/499,535.80 = 130,716.56/x
  3. Step 3: Cross multiply
    333,079.36x = 499,535.80 × 130,716.56
  4. Step 4: Simplify right side
    333,079.36x = 65,297,601,372.85
  5. Step 5: Solve for x
    x = 65,297,601,372.85/333,079.36
  6. Step 6: Final answer
    x = 196,042.17

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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.