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Finding the Fourth Proportional to 334,908.91, 502,379.79 and 135,204.39

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Solution

The fourth proportional to 334,908.91, 502,379.79 and 135,204.39 is: 202,813.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,908.91 : 502,379.79 = 135,204.39 : x
  2. Step 2: Convert to fraction form
    334,908.91/502,379.79 = 135,204.39/x
  3. Step 3: Cross multiply
    334,908.91x = 502,379.79 × 135,204.39
  4. Step 4: Simplify right side
    334,908.91x = 67,923,952,548.26
  5. Step 5: Solve for x
    x = 67,923,952,548.26/334,908.91
  6. Step 6: Final answer
    x = 202,813.21

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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.