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Finding the Fourth Proportional to 134,402.20, 201,311.70 and 111,074.20

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Solution

The fourth proportional to 134,402.20, 201,311.70 and 111,074.20 is: 166,370.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,402.20 : 201,311.70 = 111,074.20 : x
  2. Step 2: Convert to fraction form
    134,402.20/201,311.70 = 111,074.20/x
  3. Step 3: Cross multiply
    134,402.20x = 201,311.70 × 111,074.20
  4. Step 4: Simplify right side
    134,402.20x = 22,360,536,028.14
  5. Step 5: Solve for x
    x = 22,360,536,028.14/134,402.20
  6. Step 6: Final answer
    x = 166,370.31

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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.