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Finding the Fourth Proportional to 269,486.20, 404,277.90 and 111,730.60

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Solution

The fourth proportional to 269,486.20, 404,277.90 and 111,730.60 is: 167,616.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,486.20 : 404,277.90 = 111,730.60 : x
  2. Step 2: Convert to fraction form
    269,486.20/404,277.90 = 111,730.60/x
  3. Step 3: Cross multiply
    269,486.20x = 404,277.90 × 111,730.60
  4. Step 4: Simplify right side
    269,486.20x = 45,170,212,333.74
  5. Step 5: Solve for x
    x = 45,170,212,333.74/269,486.20
  6. Step 6: Final answer
    x = 167,616.05

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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.