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Finding the Fourth Proportional to 131,143.60, 196,812.60 and 96,151.60

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Solution

The fourth proportional to 131,143.60, 196,812.60 and 96,151.60 is: 144,298.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,143.60 : 196,812.60 = 96,151.60 : x
  2. Step 2: Convert to fraction form
    131,143.60/196,812.60 = 96,151.60/x
  3. Step 3: Cross multiply
    131,143.60x = 196,812.60 × 96,151.60
  4. Step 4: Simplify right side
    131,143.60x = 18,923,846,390.16
  5. Step 5: Solve for x
    x = 18,923,846,390.16/131,143.60
  6. Step 6: Final answer
    x = 144,298.66

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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.