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Finding the Fourth Proportional to 316,843.13, 475,264.70 and 106,481.07

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Solution

The fourth proportional to 316,843.13, 475,264.70 and 106,481.07 is: 159,721.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,843.13 : 475,264.70 = 106,481.07 : x
  2. Step 2: Convert to fraction form
    316,843.13/475,264.70 = 106,481.07/x
  3. Step 3: Cross multiply
    316,843.13x = 475,264.70 × 106,481.07
  4. Step 4: Simplify right side
    316,843.13x = 50,606,693,256.82
  5. Step 5: Solve for x
    x = 50,606,693,256.82/316,843.13
  6. Step 6: Final answer
    x = 159,721.61

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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.