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Finding the Fourth Proportional to 409,891.10, 614,923.05 and 173,111.90

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Solution

The fourth proportional to 409,891.10, 614,923.05 and 173,111.90 is: 259,704.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,891.10 : 614,923.05 = 173,111.90 : x
  2. Step 2: Convert to fraction form
    409,891.10/614,923.05 = 173,111.90/x
  3. Step 3: Cross multiply
    409,891.10x = 614,923.05 × 173,111.90
  4. Step 4: Simplify right side
    409,891.10x = 106,450,497,539.30
  5. Step 5: Solve for x
    x = 106,450,497,539.30/409,891.10
  6. Step 6: Final answer
    x = 259,704.34

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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.