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Finding the Fourth Proportional to 262,902.60, 394,420.25 and 73,362.79

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Solution

The fourth proportional to 262,902.60, 394,420.25 and 73,362.79 is: 110,062.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,902.60 : 394,420.25 = 73,362.79 : x
  2. Step 2: Convert to fraction form
    262,902.60/394,420.25 = 73,362.79/x
  3. Step 3: Cross multiply
    262,902.60x = 394,420.25 × 73,362.79
  4. Step 4: Simplify right side
    262,902.60x = 28,935,769,972.50
  5. Step 5: Solve for x
    x = 28,935,769,972.50/262,902.60
  6. Step 6: Final answer
    x = 110,062.70

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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.