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Finding the Fourth Proportional to 222,046.61, 306,453.53 and 126,531.41

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Solution

The fourth proportional to 222,046.61, 306,453.53 and 126,531.41 is: 174,629.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,046.61 : 306,453.53 = 126,531.41 : x
  2. Step 2: Convert to fraction form
    222,046.61/306,453.53 = 126,531.41/x
  3. Step 3: Cross multiply
    222,046.61x = 306,453.53 × 126,531.41
  4. Step 4: Simplify right side
    222,046.61x = 38,775,996,617.72
  5. Step 5: Solve for x
    x = 38,775,996,617.72/222,046.61
  6. Step 6: Final answer
    x = 174,629.99

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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.