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Finding the Fourth Proportional to 353,813.17, 488,249.28 and 192,664.68

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Solution

The fourth proportional to 353,813.17, 488,249.28 and 192,664.68 is: 265,870.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,813.17 : 488,249.28 = 192,664.68 : x
  2. Step 2: Convert to fraction form
    353,813.17/488,249.28 = 192,664.68/x
  3. Step 3: Cross multiply
    353,813.17x = 488,249.28 × 192,664.68
  4. Step 4: Simplify right side
    353,813.17x = 94,068,391,291.43
  5. Step 5: Solve for x
    x = 94,068,391,291.43/353,813.17
  6. Step 6: Final answer
    x = 265,870.24

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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.