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Finding the Fourth Proportional to 131,425.70, 197,207.40 and 60,369.80

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Solution

The fourth proportional to 131,425.70, 197,207.40 and 60,369.80 is: 90,586.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,425.70 : 197,207.40 = 60,369.80 : x
  2. Step 2: Convert to fraction form
    131,425.70/197,207.40 = 60,369.80/x
  3. Step 3: Cross multiply
    131,425.70x = 197,207.40 × 60,369.80
  4. Step 4: Simplify right side
    131,425.70x = 11,905,371,296.52
  5. Step 5: Solve for x
    x = 11,905,371,296.52/131,425.70
  6. Step 6: Final answer
    x = 90,586.33

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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.