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Finding the Fourth Proportional to 212,671.91, 293,493.88 and 122,044.46

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Solution

The fourth proportional to 212,671.91, 293,493.88 and 122,044.46 is: 168,425.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,671.91 : 293,493.88 = 122,044.46 : x
  2. Step 2: Convert to fraction form
    212,671.91/293,493.88 = 122,044.46/x
  3. Step 3: Cross multiply
    212,671.91x = 293,493.88 × 122,044.46
  4. Step 4: Simplify right side
    212,671.91x = 35,819,301,126.24
  5. Step 5: Solve for x
    x = 35,819,301,126.24/212,671.91
  6. Step 6: Final answer
    x = 168,425.16

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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.