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Finding the Fourth Proportional to 66,186.54, 99,329.03 and 26,743.99

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Solution

The fourth proportional to 66,186.54, 99,329.03 and 26,743.99 is: 40,135.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,186.54 : 99,329.03 = 26,743.99 : x
  2. Step 2: Convert to fraction form
    66,186.54/99,329.03 = 26,743.99/x
  3. Step 3: Cross multiply
    66,186.54x = 99,329.03 × 26,743.99
  4. Step 4: Simplify right side
    66,186.54x = 2,656,454,585.03
  5. Step 5: Solve for x
    x = 2,656,454,585.03/66,186.54
  6. Step 6: Final answer
    x = 40,135.87

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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.