Home / 220,431.05-330,693.33-70,776.46

Finding the Fourth Proportional to 220,431.05, 330,693.33 and 70,776.46

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Solution

The fourth proportional to 220,431.05, 330,693.33 and 70,776.46 is: 106,179.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,431.05 : 330,693.33 = 70,776.46 : x
  2. Step 2: Convert to fraction form
    220,431.05/330,693.33 = 70,776.46/x
  3. Step 3: Cross multiply
    220,431.05x = 330,693.33 × 70,776.46
  4. Step 4: Simplify right side
    220,431.05x = 23,405,302,889.13
  5. Step 5: Solve for x
    x = 23,405,302,889.13/220,431.05
  6. Step 6: Final answer
    x = 106,179.70

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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.