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Finding the Fourth Proportional to 101,636.91, 140,269.32 and 58,618.08

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Solution

The fourth proportional to 101,636.91, 140,269.32 and 58,618.08 is: 80,898.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,636.91 : 140,269.32 = 58,618.08 : x
  2. Step 2: Convert to fraction form
    101,636.91/140,269.32 = 58,618.08/x
  3. Step 3: Cross multiply
    101,636.91x = 140,269.32 × 58,618.08
  4. Step 4: Simplify right side
    101,636.91x = 8,222,318,221.31
  5. Step 5: Solve for x
    x = 8,222,318,221.31/101,636.91
  6. Step 6: Final answer
    x = 80,898.94

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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.