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Finding the Fourth Proportional to 212,672.91, 293,495.26 and 122,045.46

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Solution

The fourth proportional to 212,672.91, 293,495.26 and 122,045.46 is: 168,426.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,672.91 : 293,495.26 = 122,045.46 : x
  2. Step 2: Convert to fraction form
    212,672.91/293,495.26 = 122,045.46/x
  3. Step 3: Cross multiply
    212,672.91x = 293,495.26 × 122,045.46
  4. Step 4: Simplify right side
    212,672.91x = 35,819,764,014.52
  5. Step 5: Solve for x
    x = 35,819,764,014.52/212,672.91
  6. Step 6: Final answer
    x = 168,426.55

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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.