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Finding the Fourth Proportional to 117,727.30, 176,669.48 and 42,847.43

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Solution

The fourth proportional to 117,727.30, 176,669.48 and 42,847.43 is: 64,299.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,727.30 : 176,669.48 = 42,847.43 : x
  2. Step 2: Convert to fraction form
    117,727.30/176,669.48 = 42,847.43/x
  3. Step 3: Cross multiply
    117,727.30x = 176,669.48 × 42,847.43
  4. Step 4: Simplify right side
    117,727.30x = 7,569,833,177.44
  5. Step 5: Solve for x
    x = 7,569,833,177.44/117,727.30
  6. Step 6: Final answer
    x = 64,299.73

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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.