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Finding the Fourth Proportional to 181,317.58, 271,882.52 and 81,391.74

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Solution

The fourth proportional to 181,317.58, 271,882.52 and 81,391.74 is: 122,045.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,317.58 : 271,882.52 = 81,391.74 : x
  2. Step 2: Convert to fraction form
    181,317.58/271,882.52 = 81,391.74/x
  3. Step 3: Cross multiply
    181,317.58x = 271,882.52 × 81,391.74
  4. Step 4: Simplify right side
    181,317.58x = 22,128,991,378.38
  5. Step 5: Solve for x
    x = 22,128,991,378.38/181,317.58
  6. Step 6: Final answer
    x = 122,045.48

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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.