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Finding the Fourth Proportional to 101,134.45, 151,731.86 and 30,059.45

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Solution

The fourth proportional to 101,134.45, 151,731.86 and 30,059.45 is: 45,098.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,134.45 : 151,731.86 = 30,059.45 : x
  2. Step 2: Convert to fraction form
    101,134.45/151,731.86 = 30,059.45/x
  3. Step 3: Cross multiply
    101,134.45x = 151,731.86 × 30,059.45
  4. Step 4: Simplify right side
    101,134.45x = 4,560,975,350.12
  5. Step 5: Solve for x
    x = 4,560,975,350.12/101,134.45
  6. Step 6: Final answer
    x = 45,098.14

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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.