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Finding the Fourth Proportional to 373,716.72, 515,712.96 and 212,549.04

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Solution

The fourth proportional to 373,716.72, 515,712.96 and 212,549.04 is: 293,308.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,716.72 : 515,712.96 = 212,549.04 : x
  2. Step 2: Convert to fraction form
    373,716.72/515,712.96 = 212,549.04/x
  3. Step 3: Cross multiply
    373,716.72x = 515,712.96 × 212,549.04
  4. Step 4: Simplify right side
    373,716.72x = 109,614,294,563.56
  5. Step 5: Solve for x
    x = 109,614,294,563.56/373,716.72
  6. Step 6: Final answer
    x = 293,308.51

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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.