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Finding the Fourth Proportional to 289,069.68, 398,868.56 and 181,563.13

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Solution

The fourth proportional to 289,069.68, 398,868.56 and 181,563.13 is: 250,527.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,069.68 : 398,868.56 = 181,563.13 : x
  2. Step 2: Convert to fraction form
    289,069.68/398,868.56 = 181,563.13/x
  3. Step 3: Cross multiply
    289,069.68x = 398,868.56 × 181,563.13
  4. Step 4: Simplify right side
    289,069.68x = 72,419,824,212.19
  5. Step 5: Solve for x
    x = 72,419,824,212.19/289,069.68
  6. Step 6: Final answer
    x = 250,527.22

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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.