Home / 445,487.15-668,230.37-161,111.09

Finding the Fourth Proportional to 445,487.15, 668,230.37 and 161,111.09

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Solution

The fourth proportional to 445,487.15, 668,230.37 and 161,111.09 is: 241,666.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,487.15 : 668,230.37 = 161,111.09 : x
  2. Step 2: Convert to fraction form
    445,487.15/668,230.37 = 161,111.09/x
  3. Step 3: Cross multiply
    445,487.15x = 668,230.37 × 161,111.09
  4. Step 4: Simplify right side
    445,487.15x = 107,659,324,750.99
  5. Step 5: Solve for x
    x = 107,659,324,750.99/445,487.15
  6. Step 6: Final answer
    x = 241,666.51

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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.