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Finding the Fourth Proportional to 352,293.21, 486,160.79 and 191,151.81

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Solution

The fourth proportional to 352,293.21, 486,160.79 and 191,151.81 is: 263,787.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,293.21 : 486,160.79 = 191,151.81 : x
  2. Step 2: Convert to fraction form
    352,293.21/486,160.79 = 191,151.81/x
  3. Step 3: Cross multiply
    352,293.21x = 486,160.79 × 191,151.81
  4. Step 4: Simplify right side
    352,293.21x = 92,930,514,003.77
  5. Step 5: Solve for x
    x = 92,930,514,003.77/352,293.21
  6. Step 6: Final answer
    x = 263,787.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.