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Finding the Fourth Proportional to 231,185.80, 346,788.30 and 73,409.80

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Solution

The fourth proportional to 231,185.80, 346,788.30 and 73,409.80 is: 110,117.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,185.80 : 346,788.30 = 73,409.80 : x
  2. Step 2: Convert to fraction form
    231,185.80/346,788.30 = 73,409.80/x
  3. Step 3: Cross multiply
    231,185.80x = 346,788.30 × 73,409.80
  4. Step 4: Simplify right side
    231,185.80x = 25,457,659,745.34
  5. Step 5: Solve for x
    x = 25,457,659,745.34/231,185.80
  6. Step 6: Final answer
    x = 110,117.75

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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.