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Finding the Fourth Proportional to 301,080.76, 451,621.34 and 76,458.04

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Solution

The fourth proportional to 301,080.76, 451,621.34 and 76,458.04 is: 114,687.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,080.76 : 451,621.34 = 76,458.04 : x
  2. Step 2: Convert to fraction form
    301,080.76/451,621.34 = 76,458.04/x
  3. Step 3: Cross multiply
    301,080.76x = 451,621.34 × 76,458.04
  4. Step 4: Simplify right side
    301,080.76x = 34,530,082,478.57
  5. Step 5: Solve for x
    x = 34,530,082,478.57/301,080.76
  6. Step 6: Final answer
    x = 114,687.11

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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.