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Finding the Fourth Proportional to 229,165.52, 343,766.78 and 87,078.92

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Solution

The fourth proportional to 229,165.52, 343,766.78 and 87,078.92 is: 130,625.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,165.52 : 343,766.78 = 87,078.92 : x
  2. Step 2: Convert to fraction form
    229,165.52/343,766.78 = 87,078.92/x
  3. Step 3: Cross multiply
    229,165.52x = 343,766.78 × 87,078.92
  4. Step 4: Simplify right side
    229,165.52x = 29,934,839,934.28
  5. Step 5: Solve for x
    x = 29,934,839,934.28/229,165.52
  6. Step 6: Final answer
    x = 130,625.41

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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.