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Finding the Fourth Proportional to 279,766.96, 419,774.46 and 146,615.56

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Solution

The fourth proportional to 279,766.96, 419,774.46 and 146,615.56 is: 219,988.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,766.96 : 419,774.46 = 146,615.56 : x
  2. Step 2: Convert to fraction form
    279,766.96/419,774.46 = 146,615.56/x
  3. Step 3: Cross multiply
    279,766.96x = 419,774.46 × 146,615.56
  4. Step 4: Simplify right side
    279,766.96x = 61,545,467,526.60
  5. Step 5: Solve for x
    x = 61,545,467,526.60/279,766.96
  6. Step 6: Final answer
    x = 219,988.33

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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.