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Finding the Fourth Proportional to 305,926.20, 458,889.30 and 186,351.98

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Solution

The fourth proportional to 305,926.20, 458,889.30 and 186,351.98 is: 279,527.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,926.20 : 458,889.30 = 186,351.98 : x
  2. Step 2: Convert to fraction form
    305,926.20/458,889.30 = 186,351.98/x
  3. Step 3: Cross multiply
    305,926.20x = 458,889.30 × 186,351.98
  4. Step 4: Simplify right side
    305,926.20x = 85,514,927,361.37
  5. Step 5: Solve for x
    x = 85,514,927,361.37/305,926.20
  6. Step 6: Final answer
    x = 279,527.96

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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.