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Finding the Fourth Proportional to 548,865.31, 823,376.40 and 169,818.42

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Solution

The fourth proportional to 548,865.31, 823,376.40 and 169,818.42 is: 254,751.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,865.31 : 823,376.40 = 169,818.42 : x
  2. Step 2: Convert to fraction form
    548,865.31/823,376.40 = 169,818.42/x
  3. Step 3: Cross multiply
    548,865.31x = 823,376.40 × 169,818.42
  4. Step 4: Simplify right side
    548,865.31x = 139,824,479,313.29
  5. Step 5: Solve for x
    x = 139,824,479,313.29/548,865.31
  6. Step 6: Final answer
    x = 254,751.90

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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.