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Finding the Fourth Proportional to 269,021.70, 403,532.55 and 185,040.90

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Solution

The fourth proportional to 269,021.70, 403,532.55 and 185,040.90 is: 277,561.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,021.70 : 403,532.55 = 185,040.90 : x
  2. Step 2: Convert to fraction form
    269,021.70/403,532.55 = 185,040.90/x
  3. Step 3: Cross multiply
    269,021.70x = 403,532.55 × 185,040.90
  4. Step 4: Simplify right side
    269,021.70x = 74,670,026,231.30
  5. Step 5: Solve for x
    x = 74,670,026,231.30/269,021.70
  6. Step 6: Final answer
    x = 277,561.35

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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.