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Finding the Fourth Proportional to 301,314.70, 451,974.69 and 76,675.30

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Solution

The fourth proportional to 301,314.70, 451,974.69 and 76,675.30 is: 115,013.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,314.70 : 451,974.69 = 76,675.30 : x
  2. Step 2: Convert to fraction form
    301,314.70/451,974.69 = 76,675.30/x
  3. Step 3: Cross multiply
    301,314.70x = 451,974.69 × 76,675.30
  4. Step 4: Simplify right side
    301,314.70x = 34,655,294,948.16
  5. Step 5: Solve for x
    x = 34,655,294,948.16/301,314.70
  6. Step 6: Final answer
    x = 115,013.62

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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.