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Finding the Fourth Proportional to 143,794.06, 215,691.65 and 43,953.87

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Solution

The fourth proportional to 143,794.06, 215,691.65 and 43,953.87 is: 65,930.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,794.06 : 215,691.65 = 43,953.87 : x
  2. Step 2: Convert to fraction form
    143,794.06/215,691.65 = 43,953.87/x
  3. Step 3: Cross multiply
    143,794.06x = 215,691.65 × 43,953.87
  4. Step 4: Simplify right side
    143,794.06x = 9,480,482,584.46
  5. Step 5: Solve for x
    x = 9,480,482,584.46/143,794.06
  6. Step 6: Final answer
    x = 65,930.97

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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.