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Finding the Fourth Proportional to 111,803.30, 167,741.87 and 45,207.11

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Solution

The fourth proportional to 111,803.30, 167,741.87 and 45,207.11 is: 67,825.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,803.30 : 167,741.87 = 45,207.11 : x
  2. Step 2: Convert to fraction form
    111,803.30/167,741.87 = 45,207.11/x
  3. Step 3: Cross multiply
    111,803.30x = 167,741.87 × 45,207.11
  4. Step 4: Simplify right side
    111,803.30x = 7,583,124,103.95
  5. Step 5: Solve for x
    x = 7,583,124,103.95/111,803.30
  6. Step 6: Final answer
    x = 67,825.59

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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.