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Finding the Fourth Proportional to 371,512.98, 557,466.30 and 161,298.54

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Solution

The fourth proportional to 371,512.98, 557,466.30 and 161,298.54 is: 242,033.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,512.98 : 557,466.30 = 161,298.54 : x
  2. Step 2: Convert to fraction form
    371,512.98/557,466.30 = 161,298.54/x
  3. Step 3: Cross multiply
    371,512.98x = 557,466.30 × 161,298.54
  4. Step 4: Simplify right side
    371,512.98x = 89,918,500,289.20
  5. Step 5: Solve for x
    x = 89,918,500,289.20/371,512.98
  6. Step 6: Final answer
    x = 242,033.27

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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.