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Finding the Fourth Proportional to 352,991.39, 487,131.89 and 191,846.45

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Solution

The fourth proportional to 352,991.39, 487,131.89 and 191,846.45 is: 264,750.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,991.39 : 487,131.89 = 191,846.45 : x
  2. Step 2: Convert to fraction form
    352,991.39/487,131.89 = 191,846.45/x
  3. Step 3: Cross multiply
    352,991.39x = 487,131.89 × 191,846.45
  4. Step 4: Simplify right side
    352,991.39x = 93,454,520,383.40
  5. Step 5: Solve for x
    x = 93,454,520,383.40/352,991.39
  6. Step 6: Final answer
    x = 264,750.15

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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.