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Finding the Fourth Proportional to 339,398.70, 508,888.70 and 114,737.82

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Solution

The fourth proportional to 339,398.70, 508,888.70 and 114,737.82 is: 172,035.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,398.70 : 508,888.70 = 114,737.82 : x
  2. Step 2: Convert to fraction form
    339,398.70/508,888.70 = 114,737.82/x
  3. Step 3: Cross multiply
    339,398.70x = 508,888.70 × 114,737.82
  4. Step 4: Simplify right side
    339,398.70x = 58,388,780,060.63
  5. Step 5: Solve for x
    x = 58,388,780,060.63/339,398.70
  6. Step 6: Final answer
    x = 172,035.96

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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.