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Finding the Fourth Proportional to 306,912.44, 423,560.43 and 186,058.82

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Solution

The fourth proportional to 306,912.44, 423,560.43 and 186,058.82 is: 256,774.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,912.44 : 423,560.43 = 186,058.82 : x
  2. Step 2: Convert to fraction form
    306,912.44/423,560.43 = 186,058.82/x
  3. Step 3: Cross multiply
    306,912.44x = 423,560.43 × 186,058.82
  4. Step 4: Simplify right side
    306,912.44x = 78,807,153,804.49
  5. Step 5: Solve for x
    x = 78,807,153,804.49/306,912.44
  6. Step 6: Final answer
    x = 256,774.06

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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.