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Finding the Fourth Proportional to 262,808.78, 394,462.20 and 162,666.02

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Solution

The fourth proportional to 262,808.78, 394,462.20 and 162,666.02 is: 244,153.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,808.78 : 394,462.20 = 162,666.02 : x
  2. Step 2: Convert to fraction form
    262,808.78/394,462.20 = 162,666.02/x
  3. Step 3: Cross multiply
    262,808.78x = 394,462.20 × 162,666.02
  4. Step 4: Simplify right side
    262,808.78x = 64,165,596,114.44
  5. Step 5: Solve for x
    x = 64,165,596,114.44/262,808.78
  6. Step 6: Final answer
    x = 244,153.17

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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.