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Finding the Fourth Proportional to 236,044.40, 353,836.20 and 211,161.20

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Solution

The fourth proportional to 236,044.40, 353,836.20 and 211,161.20 is: 316,535.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,044.40 : 353,836.20 = 211,161.20 : x
  2. Step 2: Convert to fraction form
    236,044.40/353,836.20 = 211,161.20/x
  3. Step 3: Cross multiply
    236,044.40x = 353,836.20 × 211,161.20
  4. Step 4: Simplify right side
    236,044.40x = 74,716,476,595.44
  5. Step 5: Solve for x
    x = 74,716,476,595.44/236,044.40
  6. Step 6: Final answer
    x = 316,535.69

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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.