Home / 220,850.51-331,374.06-80,576.33

Finding the Fourth Proportional to 220,850.51, 331,374.06 and 80,576.33

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Solution

The fourth proportional to 220,850.51, 331,374.06 and 80,576.33 is: 120,900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,850.51 : 331,374.06 = 80,576.33 : x
  2. Step 2: Convert to fraction form
    220,850.51/331,374.06 = 80,576.33/x
  3. Step 3: Cross multiply
    220,850.51x = 331,374.06 × 80,576.33
  4. Step 4: Simplify right side
    220,850.51x = 26,700,903,955.13
  5. Step 5: Solve for x
    x = 26,700,903,955.13/220,850.51
  6. Step 6: Final answer
    x = 120,900.35

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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.