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Finding the Fourth Proportional to 181,645.75, 272,512.38 and 56,986.75

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Solution

The fourth proportional to 181,645.75, 272,512.38 and 56,986.75 is: 85,493.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,645.75 : 272,512.38 = 56,986.75 : x
  2. Step 2: Convert to fraction form
    181,645.75/272,512.38 = 56,986.75/x
  3. Step 3: Cross multiply
    181,645.75x = 272,512.38 × 56,986.75
  4. Step 4: Simplify right side
    181,645.75x = 15,529,594,870.97
  5. Step 5: Solve for x
    x = 15,529,594,870.97/181,645.75
  6. Step 6: Final answer
    x = 85,493.85

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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.