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Finding the Fourth Proportional to 101,173.18, 151,635.45 and 71,599.42

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Solution

The fourth proportional to 101,173.18, 151,635.45 and 71,599.42 is: 107,311.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,173.18 : 151,635.45 = 71,599.42 : x
  2. Step 2: Convert to fraction form
    101,173.18/151,635.45 = 71,599.42/x
  3. Step 3: Cross multiply
    101,173.18x = 151,635.45 × 71,599.42
  4. Step 4: Simplify right side
    101,173.18x = 10,857,010,271.44
  5. Step 5: Solve for x
    x = 10,857,010,271.44/101,173.18
  6. Step 6: Final answer
    x = 107,311.15

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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.