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Finding the Fourth Proportional to 323,148.26, 484,497.54 and 143,135.97

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Solution

The fourth proportional to 323,148.26, 484,497.54 and 143,135.97 is: 214,604.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,148.26 : 484,497.54 = 143,135.97 : x
  2. Step 2: Convert to fraction form
    323,148.26/484,497.54 = 143,135.97/x
  3. Step 3: Cross multiply
    323,148.26x = 484,497.54 × 143,135.97
  4. Step 4: Simplify right side
    323,148.26x = 69,349,025,350.51
  5. Step 5: Solve for x
    x = 69,349,025,350.51/323,148.26
  6. Step 6: Final answer
    x = 214,604.36

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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.