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Finding the Fourth Proportional to 337,215.69, 505,675.71 and 126,705.87

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Solution

The fourth proportional to 337,215.69, 505,675.71 and 126,705.87 is: 190,003.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,215.69 : 505,675.71 = 126,705.87 : x
  2. Step 2: Convert to fraction form
    337,215.69/505,675.71 = 126,705.87/x
  3. Step 3: Cross multiply
    337,215.69x = 505,675.71 × 126,705.87
  4. Step 4: Simplify right side
    337,215.69x = 64,072,080,773.42
  5. Step 5: Solve for x
    x = 64,072,080,773.42/337,215.69
  6. Step 6: Final answer
    x = 190,003.26

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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.