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Finding the Fourth Proportional to 230,975.80, 346,512.30 and 73,220.20

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Solution

The fourth proportional to 230,975.80, 346,512.30 and 73,220.20 is: 109,845.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,975.80 : 346,512.30 = 73,220.20 : x
  2. Step 2: Convert to fraction form
    230,975.80/346,512.30 = 73,220.20/x
  3. Step 3: Cross multiply
    230,975.80x = 346,512.30 × 73,220.20
  4. Step 4: Simplify right side
    230,975.80x = 25,371,699,908.46
  5. Step 5: Solve for x
    x = 25,371,699,908.46/230,975.80
  6. Step 6: Final answer
    x = 109,845.71

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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.