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Finding the Fourth Proportional to 181,212.42, 271,710.96 and 68,900.85

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Solution

The fourth proportional to 181,212.42, 271,710.96 and 68,900.85 is: 103,310.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,212.42 : 271,710.96 = 68,900.85 : x
  2. Step 2: Convert to fraction form
    181,212.42/271,710.96 = 68,900.85/x
  3. Step 3: Cross multiply
    181,212.42x = 271,710.96 × 68,900.85
  4. Step 4: Simplify right side
    181,212.42x = 18,721,116,098.32
  5. Step 5: Solve for x
    x = 18,721,116,098.32/181,212.42
  6. Step 6: Final answer
    x = 103,310.34

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1.5x scale

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.