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Finding the Fourth Proportional to 190,874.53, 287,652.39 and 171,922.91

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Solution

The fourth proportional to 190,874.53, 287,652.39 and 171,922.91 is: 259,091.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,874.53 : 287,652.39 = 171,922.91 : x
  2. Step 2: Convert to fraction form
    190,874.53/287,652.39 = 171,922.91/x
  3. Step 3: Cross multiply
    190,874.53x = 287,652.39 × 171,922.91
  4. Step 4: Simplify right side
    190,874.53x = 49,454,034,357.82
  5. Step 5: Solve for x
    x = 49,454,034,357.82/190,874.53
  6. Step 6: Final answer
    x = 259,091.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.