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Finding the Fourth Proportional to 352,906.17, 487,013.60 and 191,761.22

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Solution

The fourth proportional to 352,906.17, 487,013.60 and 191,761.22 is: 264,632.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,906.17 : 487,013.60 = 191,761.22 : x
  2. Step 2: Convert to fraction form
    352,906.17/487,013.60 = 191,761.22/x
  3. Step 3: Cross multiply
    352,906.17x = 487,013.60 × 191,761.22
  4. Step 4: Simplify right side
    352,906.17x = 93,390,322,710.87
  5. Step 5: Solve for x
    x = 93,390,322,710.87/352,906.17
  6. Step 6: Final answer
    x = 264,632.16

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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.