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Finding the Fourth Proportional to 351,486.73, 527,121.05 and 126,818.04

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Solution

The fourth proportional to 351,486.73, 527,121.05 and 126,818.04 is: 190,187.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,486.73 : 527,121.05 = 126,818.04 : x
  2. Step 2: Convert to fraction form
    351,486.73/527,121.05 = 126,818.04/x
  3. Step 3: Cross multiply
    351,486.73x = 527,121.05 × 126,818.04
  4. Step 4: Simplify right side
    351,486.73x = 66,848,458,403.74
  5. Step 5: Solve for x
    x = 66,848,458,403.74/351,486.73
  6. Step 6: Final answer
    x = 190,187.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.