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Finding the Fourth Proportional to 91,172.99, 136,808.60 and 44,425.87

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Solution

The fourth proportional to 91,172.99, 136,808.60 and 44,425.87 is: 66,662.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,172.99 : 136,808.60 = 44,425.87 : x
  2. Step 2: Convert to fraction form
    91,172.99/136,808.60 = 44,425.87/x
  3. Step 3: Cross multiply
    91,172.99x = 136,808.60 × 44,425.87
  4. Step 4: Simplify right side
    91,172.99x = 6,077,840,514.33
  5. Step 5: Solve for x
    x = 6,077,840,514.33/91,172.99
  6. Step 6: Final answer
    x = 66,662.73

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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.