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Finding the Fourth Proportional to 422,943.74, 634,259.45 and 183,092.61

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Solution

The fourth proportional to 422,943.74, 634,259.45 and 183,092.61 is: 274,571.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,943.74 : 634,259.45 = 183,092.61 : x
  2. Step 2: Convert to fraction form
    422,943.74/634,259.45 = 183,092.61/x
  3. Step 3: Cross multiply
    422,943.74x = 634,259.45 × 183,092.61
  4. Step 4: Simplify right side
    422,943.74x = 116,128,217,202.20
  5. Step 5: Solve for x
    x = 116,128,217,202.20/422,943.74
  6. Step 6: Final answer
    x = 274,571.31

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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.