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Finding the Fourth Proportional to 354,187.34, 488,778.90 and 193,042.52

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Solution

The fourth proportional to 354,187.34, 488,778.90 and 193,042.52 is: 266,398.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,187.34 : 488,778.90 = 193,042.52 : x
  2. Step 2: Convert to fraction form
    354,187.34/488,778.90 = 193,042.52/x
  3. Step 3: Cross multiply
    354,187.34x = 488,778.90 × 193,042.52
  4. Step 4: Simplify right side
    354,187.34x = 94,355,110,578.83
  5. Step 5: Solve for x
    x = 94,355,110,578.83/354,187.34
  6. Step 6: Final answer
    x = 266,398.88

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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.