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Finding the Fourth Proportional to 293,881.20, 439,900.20 and 210,937.20

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Solution

The fourth proportional to 293,881.20, 439,900.20 and 210,937.20 is: 315,744.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,881.20 : 439,900.20 = 210,937.20 : x
  2. Step 2: Convert to fraction form
    293,881.20/439,900.20 = 210,937.20/x
  3. Step 3: Cross multiply
    293,881.20x = 439,900.20 × 210,937.20
  4. Step 4: Simplify right side
    293,881.20x = 92,791,316,467.44
  5. Step 5: Solve for x
    x = 92,791,316,467.44/293,881.20
  6. Step 6: Final answer
    x = 315,744.31

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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.