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Finding the Fourth Proportional to 181,538.64, 250,523.33 and 99,868.03

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Solution

The fourth proportional to 181,538.64, 250,523.33 and 99,868.03 is: 137,817.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,538.64 : 250,523.33 = 99,868.03 : x
  2. Step 2: Convert to fraction form
    181,538.64/250,523.33 = 99,868.03/x
  3. Step 3: Cross multiply
    181,538.64x = 250,523.33 × 99,868.03
  4. Step 4: Simplify right side
    181,538.64x = 25,019,271,392.97
  5. Step 5: Solve for x
    x = 25,019,271,392.97/181,538.64
  6. Step 6: Final answer
    x = 137,817.88

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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.