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Finding the Fourth Proportional to 289,270.30, 399,145.49 and 181,764.19

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Solution

The fourth proportional to 289,270.30, 399,145.49 and 181,764.19 is: 250,804.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,270.30 : 399,145.49 = 181,764.19 : x
  2. Step 2: Convert to fraction form
    289,270.30/399,145.49 = 181,764.19/x
  3. Step 3: Cross multiply
    289,270.30x = 399,145.49 × 181,764.19
  4. Step 4: Simplify right side
    289,270.30x = 72,550,355,773.18
  5. Step 5: Solve for x
    x = 72,550,355,773.18/289,270.30
  6. Step 6: Final answer
    x = 250,804.72

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