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Finding the Fourth Proportional to 354,141.11, 488,700.49 and 192,992.68

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Solution

The fourth proportional to 354,141.11, 488,700.49 and 192,992.68 is: 266,322.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,141.11 : 488,700.49 = 192,992.68 : x
  2. Step 2: Convert to fraction form
    354,141.11/488,700.49 = 192,992.68/x
  3. Step 3: Cross multiply
    354,141.11x = 488,700.49 × 192,992.68
  4. Step 4: Simplify right side
    354,141.11x = 94,315,615,023.73
  5. Step 5: Solve for x
    x = 94,315,615,023.73/354,141.11
  6. Step 6: Final answer
    x = 266,322.13

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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.