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Finding the Fourth Proportional to 151,030.60, 226,286.70 and 71,974.60

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Solution

The fourth proportional to 151,030.60, 226,286.70 and 71,974.60 is: 107,838.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,030.60 : 226,286.70 = 71,974.60 : x
  2. Step 2: Convert to fraction form
    151,030.60/226,286.70 = 71,974.60/x
  3. Step 3: Cross multiply
    151,030.60x = 226,286.70 × 71,974.60
  4. Step 4: Simplify right side
    151,030.60x = 16,286,894,717.82
  5. Step 5: Solve for x
    x = 16,286,894,717.82/151,030.60
  6. Step 6: Final answer
    x = 107,838.38

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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.