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Finding the Fourth Proportional to 204,326.64, 306,486.90 and 91,927.49

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Solution

The fourth proportional to 204,326.64, 306,486.90 and 91,927.49 is: 137,889.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,326.64 : 306,486.90 = 91,927.49 : x
  2. Step 2: Convert to fraction form
    204,326.64/306,486.90 = 91,927.49/x
  3. Step 3: Cross multiply
    204,326.64x = 306,486.90 × 91,927.49
  4. Step 4: Simplify right side
    204,326.64x = 28,174,569,902.45
  5. Step 5: Solve for x
    x = 28,174,569,902.45/204,326.64
  6. Step 6: Final answer
    x = 137,889.85

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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.