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Finding the Fourth Proportional to 181,966, 251,114.88 and 106,516.12

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Solution

The fourth proportional to 181,966, 251,114.88 and 106,516.12 is: 146,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,966 : 251,114.88 = 106,516.12 : x
  2. Step 2: Convert to fraction form
    181,966/251,114.88 = 106,516.12/x
  3. Step 3: Cross multiply
    181,966x = 251,114.88 × 106,516.12
  4. Step 4: Simplify right side
    181,966x = 26,747,782,691.87
  5. Step 5: Solve for x
    x = 26,747,782,691.87/181,966
  6. Step 6: Final answer
    x = 146,993.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.