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Finding the Fourth Proportional to 167,525.20, 251,287.80 and 100,931.05

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Solution

The fourth proportional to 167,525.20, 251,287.80 and 100,931.05 is: 151,396.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,525.20 : 251,287.80 = 100,931.05 : x
  2. Step 2: Convert to fraction form
    167,525.20/251,287.80 = 100,931.05/x
  3. Step 3: Cross multiply
    167,525.20x = 251,287.80 × 100,931.05
  4. Step 4: Simplify right side
    167,525.20x = 25,362,741,506.19
  5. Step 5: Solve for x
    x = 25,362,741,506.19/167,525.20
  6. Step 6: Final answer
    x = 151,396.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.