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Finding the Fourth Proportional to 336,650.20, 505,064.40 and 147,029.20

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Solution

The fourth proportional to 336,650.20, 505,064.40 and 147,029.20 is: 220,582.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,650.20 : 505,064.40 = 147,029.20 : x
  2. Step 2: Convert to fraction form
    336,650.20/505,064.40 = 147,029.20/x
  3. Step 3: Cross multiply
    336,650.20x = 505,064.40 × 147,029.20
  4. Step 4: Simplify right side
    336,650.20x = 74,259,214,680.48
  5. Step 5: Solve for x
    x = 74,259,214,680.48/336,650.20
  6. Step 6: Final answer
    x = 220,582.71

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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.