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Finding the Fourth Proportional to 303,835.70, 419,317.76 and 167,881.52

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Solution

The fourth proportional to 303,835.70, 419,317.76 and 167,881.52 is: 231,690.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,835.70 : 419,317.76 = 167,881.52 : x
  2. Step 2: Convert to fraction form
    303,835.70/419,317.76 = 167,881.52/x
  3. Step 3: Cross multiply
    303,835.70x = 419,317.76 × 167,881.52
  4. Step 4: Simplify right side
    303,835.70x = 70,395,702,911.80
  5. Step 5: Solve for x
    x = 70,395,702,911.80/303,835.70
  6. Step 6: Final answer
    x = 231,690.03

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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.