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Finding the Fourth Proportional to 167,478.40, 251,189.52 and 55,159.84

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Solution

The fourth proportional to 167,478.40, 251,189.52 and 55,159.84 is: 82,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,478.40 : 251,189.52 = 55,159.84 : x
  2. Step 2: Convert to fraction form
    167,478.40/251,189.52 = 55,159.84/x
  3. Step 3: Cross multiply
    167,478.40x = 251,189.52 × 55,159.84
  4. Step 4: Simplify right side
    167,478.40x = 13,855,573,732.88
  5. Step 5: Solve for x
    x = 13,855,573,732.88/167,478.40
  6. Step 6: Final answer
    x = 82,730.51

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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.