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Finding the Fourth Proportional to 322,983.74, 484,584.28 and 143,044.22

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Solution

The fourth proportional to 322,983.74, 484,584.28 and 143,044.22 is: 214,614.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,983.74 : 484,584.28 = 143,044.22 : x
  2. Step 2: Convert to fraction form
    322,983.74/484,584.28 = 143,044.22/x
  3. Step 3: Cross multiply
    322,983.74x = 484,584.28 × 143,044.22
  4. Step 4: Simplify right side
    322,983.74x = 69,316,980,356.86
  5. Step 5: Solve for x
    x = 69,316,980,356.86/322,983.74
  6. Step 6: Final answer
    x = 214,614.46

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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.