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Finding the Fourth Proportional to 230,910.40, 346,376.40 and 73,151.20

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Solution

The fourth proportional to 230,910.40, 346,376.40 and 73,151.20 is: 109,730.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,910.40 : 346,376.40 = 73,151.20 : x
  2. Step 2: Convert to fraction form
    230,910.40/346,376.40 = 73,151.20/x
  3. Step 3: Cross multiply
    230,910.40x = 346,376.40 × 73,151.20
  4. Step 4: Simplify right side
    230,910.40x = 25,337,849,311.68
  5. Step 5: Solve for x
    x = 25,337,849,311.68/230,910.40
  6. Step 6: Final answer
    x = 109,730.22

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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.