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Finding the Fourth Proportional to 130,894.92, 196,343.28 and 55,951.89

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Solution

The fourth proportional to 130,894.92, 196,343.28 and 55,951.89 is: 83,928.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,894.92 : 196,343.28 = 55,951.89 : x
  2. Step 2: Convert to fraction form
    130,894.92/196,343.28 = 55,951.89/x
  3. Step 3: Cross multiply
    130,894.92x = 196,343.28 × 55,951.89
  4. Step 4: Simplify right side
    130,894.92x = 10,985,777,604.80
  5. Step 5: Solve for x
    x = 10,985,777,604.80/130,894.92
  6. Step 6: Final answer
    x = 83,928.22

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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.