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Finding the Fourth Proportional to 373,876.04, 515,930.94 and 212,716.04

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Solution

The fourth proportional to 373,876.04, 515,930.94 and 212,716.04 is: 293,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,876.04 : 515,930.94 = 212,716.04 : x
  2. Step 2: Convert to fraction form
    373,876.04/515,930.94 = 212,716.04/x
  3. Step 3: Cross multiply
    373,876.04x = 515,930.94 × 212,716.04
  4. Step 4: Simplify right side
    373,876.04x = 109,746,786,470.28
  5. Step 5: Solve for x
    x = 109,746,786,470.28/373,876.04
  6. Step 6: Final answer
    x = 293,537.90

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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.