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Finding the Fourth Proportional to 374,049.22, 516,191.22 and 212,914.66

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Solution

The fourth proportional to 374,049.22, 516,191.22 and 212,914.66 is: 293,824.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,049.22 : 516,191.22 = 212,914.66 : x
  2. Step 2: Convert to fraction form
    374,049.22/516,191.22 = 212,914.66/x
  3. Step 3: Cross multiply
    374,049.22x = 516,191.22 × 212,914.66
  4. Step 4: Simplify right side
    374,049.22x = 109,904,678,101.29
  5. Step 5: Solve for x
    x = 109,904,678,101.29/374,049.22
  6. Step 6: Final answer
    x = 293,824.11

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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.