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Finding the Fourth Proportional to 351,109.37, 484,530.74 and 198,179.65

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Solution

The fourth proportional to 351,109.37, 484,530.74 and 198,179.65 is: 273,487.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,109.37 : 484,530.74 = 198,179.65 : x
  2. Step 2: Convert to fraction form
    351,109.37/484,530.74 = 198,179.65/x
  3. Step 3: Cross multiply
    351,109.37x = 484,530.74 × 198,179.65
  4. Step 4: Simplify right side
    351,109.37x = 96,024,130,044.79
  5. Step 5: Solve for x
    x = 96,024,130,044.79/351,109.37
  6. Step 6: Final answer
    x = 273,487.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.