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Finding the Fourth Proportional to 190,959.82, 286,168.17 and 140,644.24

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Solution

The fourth proportional to 190,959.82, 286,168.17 and 140,644.24 is: 210,766.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,959.82 : 286,168.17 = 140,644.24 : x
  2. Step 2: Convert to fraction form
    190,959.82/286,168.17 = 140,644.24/x
  3. Step 3: Cross multiply
    190,959.82x = 286,168.17 × 140,644.24
  4. Step 4: Simplify right side
    190,959.82x = 40,247,904,781.84
  5. Step 5: Solve for x
    x = 40,247,904,781.84/190,959.82
  6. Step 6: Final answer
    x = 210,766.35

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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.