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Finding the Fourth Proportional to 293,411.70, 440,031.15 and 115,859.70

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Solution

The fourth proportional to 293,411.70, 440,031.15 and 115,859.70 is: 173,755.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,411.70 : 440,031.15 = 115,859.70 : x
  2. Step 2: Convert to fraction form
    293,411.70/440,031.15 = 115,859.70/x
  3. Step 3: Cross multiply
    293,411.70x = 440,031.15 × 115,859.70
  4. Step 4: Simplify right side
    293,411.70x = 50,981,877,029.66
  5. Step 5: Solve for x
    x = 50,981,877,029.66/293,411.70
  6. Step 6: Final answer
    x = 173,755.43

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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.