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Finding the Fourth Proportional to 293,488.60, 440,103.30 and 115,936.60

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Solution

The fourth proportional to 293,488.60, 440,103.30 and 115,936.60 is: 173,853.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,488.60 : 440,103.30 = 115,936.60 : x
  2. Step 2: Convert to fraction form
    293,488.60/440,103.30 = 115,936.60/x
  3. Step 3: Cross multiply
    293,488.60x = 440,103.30 × 115,936.60
  4. Step 4: Simplify right side
    293,488.60x = 51,024,080,250.78
  5. Step 5: Solve for x
    x = 51,024,080,250.78/293,488.60
  6. Step 6: Final answer
    x = 173,853.70

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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.