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Finding the Fourth Proportional to 95,879.61, 132,318.39 and 53,438.45

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Solution

The fourth proportional to 95,879.61, 132,318.39 and 53,438.45 is: 73,747.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,879.61 : 132,318.39 = 53,438.45 : x
  2. Step 2: Convert to fraction form
    95,879.61/132,318.39 = 53,438.45/x
  3. Step 3: Cross multiply
    95,879.61x = 132,318.39 × 53,438.45
  4. Step 4: Simplify right side
    95,879.61x = 7,070,889,006.50
  5. Step 5: Solve for x
    x = 7,070,889,006.50/95,879.61
  6. Step 6: Final answer
    x = 73,747.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.