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Finding the Fourth Proportional to 298,695.50, 447,859.31 and 146,699.27

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Solution

The fourth proportional to 298,695.50, 447,859.31 and 146,699.27 is: 219,958.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,695.50 : 447,859.31 = 146,699.27 : x
  2. Step 2: Convert to fraction form
    298,695.50/447,859.31 = 146,699.27/x
  3. Step 3: Cross multiply
    298,695.50x = 447,859.31 × 146,699.27
  4. Step 4: Simplify right side
    298,695.50x = 65,700,633,371.57
  5. Step 5: Solve for x
    x = 65,700,633,371.57/298,695.50
  6. Step 6: Final answer
    x = 219,958.57

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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.