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Finding the Fourth Proportional to 212,671.50, 293,493.32 and 122,044.04

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Solution

The fourth proportional to 212,671.50, 293,493.32 and 122,044.04 is: 168,424.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,671.50 : 293,493.32 = 122,044.04 : x
  2. Step 2: Convert to fraction form
    212,671.50/293,493.32 = 122,044.04/x
  3. Step 3: Cross multiply
    212,671.50x = 293,493.32 × 122,044.04
  4. Step 4: Simplify right side
    212,671.50x = 35,819,111,227.72
  5. Step 5: Solve for x
    x = 35,819,111,227.72/212,671.50
  6. Step 6: Final answer
    x = 168,424.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.