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Finding the Fourth Proportional to 293,886.70, 439,908.45 and 210,942.70

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Solution

The fourth proportional to 293,886.70, 439,908.45 and 210,942.70 is: 315,752.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,886.70 : 439,908.45 = 210,942.70 : x
  2. Step 2: Convert to fraction form
    293,886.70/439,908.45 = 210,942.70/x
  3. Step 3: Cross multiply
    293,886.70x = 439,908.45 × 210,942.70
  4. Step 4: Simplify right side
    293,886.70x = 92,795,476,195.82
  5. Step 5: Solve for x
    x = 92,795,476,195.82/293,886.70
  6. Step 6: Final answer
    x = 315,752.55

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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.