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Finding the Fourth Proportional to 349,601.80, 523,949.10 and 162,214.60

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Solution

The fourth proportional to 349,601.80, 523,949.10 and 162,214.60 is: 243,111.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,601.80 : 523,949.10 = 162,214.60 : x
  2. Step 2: Convert to fraction form
    349,601.80/523,949.10 = 162,214.60/x
  3. Step 3: Cross multiply
    349,601.80x = 523,949.10 × 162,214.60
  4. Step 4: Simplify right side
    349,601.80x = 84,992,193,676.86
  5. Step 5: Solve for x
    x = 84,992,193,676.86/349,601.80
  6. Step 6: Final answer
    x = 243,111.43

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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.