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Finding the Fourth Proportional to 289,245.30, 399,110.97 and 181,739.16

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Solution

The fourth proportional to 289,245.30, 399,110.97 and 181,739.16 is: 250,770.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,245.30 : 399,110.97 = 181,739.16 : x
  2. Step 2: Convert to fraction form
    289,245.30/399,110.97 = 181,739.16/x
  3. Step 3: Cross multiply
    289,245.30x = 399,110.97 × 181,739.16
  4. Step 4: Simplify right side
    289,245.30x = 72,534,092,434.59
  5. Step 5: Solve for x
    x = 72,534,092,434.59/289,245.30
  6. Step 6: Final answer
    x = 250,770.17

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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.