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Finding the Fourth Proportional to 357,481.35, 493,332.89 and 196,339.95

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Solution

The fourth proportional to 357,481.35, 493,332.89 and 196,339.95 is: 270,953.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,481.35 : 493,332.89 = 196,339.95 : x
  2. Step 2: Convert to fraction form
    357,481.35/493,332.89 = 196,339.95/x
  3. Step 3: Cross multiply
    357,481.35x = 493,332.89 × 196,339.95
  4. Step 4: Simplify right side
    357,481.35x = 96,860,953,974.26
  5. Step 5: Solve for x
    x = 96,860,953,974.26/357,481.35
  6. Step 6: Final answer
    x = 270,953.87

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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.