Home / 200,629.17-300,983.07-74,270.48

Finding the Fourth Proportional to 200,629.17, 300,983.07 and 74,270.48

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Solution

The fourth proportional to 200,629.17, 300,983.07 and 74,270.48 is: 111,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,629.17 : 300,983.07 = 74,270.48 : x
  2. Step 2: Convert to fraction form
    200,629.17/300,983.07 = 74,270.48/x
  3. Step 3: Cross multiply
    200,629.17x = 300,983.07 × 74,270.48
  4. Step 4: Simplify right side
    200,629.17x = 22,354,156,709.42
  5. Step 5: Solve for x
    x = 22,354,156,709.42/200,629.17
  6. Step 6: Final answer
    x = 111,420.27

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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.