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Finding the Fourth Proportional to 167,031.10, 250,218.60 and 155,221.30

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Solution

The fourth proportional to 167,031.10, 250,218.60 and 155,221.30 is: 232,527.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,031.10 : 250,218.60 = 155,221.30 : x
  2. Step 2: Convert to fraction form
    167,031.10/250,218.60 = 155,221.30/x
  3. Step 3: Cross multiply
    167,031.10x = 250,218.60 × 155,221.30
  4. Step 4: Simplify right side
    167,031.10x = 38,839,256,376.18
  5. Step 5: Solve for x
    x = 38,839,256,376.18/167,031.10
  6. Step 6: Final answer
    x = 232,527.09

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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.