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Finding the Fourth Proportional to 95,930.70, 143,896.05 and 54,458.70

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Solution

The fourth proportional to 95,930.70, 143,896.05 and 54,458.70 is: 81,688.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,930.70 : 143,896.05 = 54,458.70 : x
  2. Step 2: Convert to fraction form
    95,930.70/143,896.05 = 54,458.70/x
  3. Step 3: Cross multiply
    95,930.70x = 143,896.05 × 54,458.70
  4. Step 4: Simplify right side
    95,930.70x = 7,836,391,818.14
  5. Step 5: Solve for x
    x = 7,836,391,818.14/95,930.70
  6. Step 6: Final answer
    x = 81,688.05

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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.