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Finding the Fourth Proportional to 181,893.87, 251,016.21 and 105,418.62

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Solution

The fourth proportional to 181,893.87, 251,016.21 and 105,418.62 is: 145,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,893.87 : 251,016.21 = 105,418.62 : x
  2. Step 2: Convert to fraction form
    181,893.87/251,016.21 = 105,418.62/x
  3. Step 3: Cross multiply
    181,893.87x = 251,016.21 × 105,418.62
  4. Step 4: Simplify right side
    181,893.87x = 26,461,782,455.83
  5. Step 5: Solve for x
    x = 26,461,782,455.83/181,893.87
  6. Step 6: Final answer
    x = 145,479.24

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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.