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Finding the Fourth Proportional to 363,531.75, 501,712.70 and 212,755.11

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Solution

The fourth proportional to 363,531.75, 501,712.70 and 212,755.11 is: 293,624.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,531.75 : 501,712.70 = 212,755.11 : x
  2. Step 2: Convert to fraction form
    363,531.75/501,712.70 = 212,755.11/x
  3. Step 3: Cross multiply
    363,531.75x = 501,712.70 × 212,755.11
  4. Step 4: Simplify right side
    363,531.75x = 106,741,939,613.12
  5. Step 5: Solve for x
    x = 106,741,939,613.12/363,531.75
  6. Step 6: Final answer
    x = 293,624.81

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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.