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Finding the Fourth Proportional to 352,996.31, 487,138.10 and 191,851.74

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Solution

The fourth proportional to 352,996.31, 487,138.10 and 191,851.74 is: 264,757.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,996.31 : 487,138.10 = 191,851.74 : x
  2. Step 2: Convert to fraction form
    352,996.31/487,138.10 = 191,851.74/x
  3. Step 3: Cross multiply
    352,996.31x = 487,138.10 × 191,851.74
  4. Step 4: Simplify right side
    352,996.31x = 93,458,291,146.04
  5. Step 5: Solve for x
    x = 93,458,291,146.04/352,996.31
  6. Step 6: Final answer
    x = 264,757.14

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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.