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Finding the Fourth Proportional to 269,086.40, 403,483.80 and 111,330.80

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Solution

The fourth proportional to 269,086.40, 403,483.80 and 111,330.80 is: 166,935.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,086.40 : 403,483.80 = 111,330.80 : x
  2. Step 2: Convert to fraction form
    269,086.40/403,483.80 = 111,330.80/x
  3. Step 3: Cross multiply
    269,086.40x = 403,483.80 × 111,330.80
  4. Step 4: Simplify right side
    269,086.40x = 44,920,174,241.04
  5. Step 5: Solve for x
    x = 44,920,174,241.04/269,086.40
  6. Step 6: Final answer
    x = 166,935.88

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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.