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Finding the Fourth Proportional to 352,916.43, 487,027.62 and 191,771.48

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Solution

The fourth proportional to 352,916.43, 487,027.62 and 191,771.48 is: 264,646.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,916.43 : 487,027.62 = 191,771.48 : x
  2. Step 2: Convert to fraction form
    352,916.43/487,027.62 = 191,771.48/x
  3. Step 3: Cross multiply
    352,916.43x = 487,027.62 × 191,771.48
  4. Step 4: Simplify right side
    352,916.43x = 93,398,005,053.14
  5. Step 5: Solve for x
    x = 93,398,005,053.14/352,916.43
  6. Step 6: Final answer
    x = 264,646.24

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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.