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Finding the Fourth Proportional to 167,871.14, 251,806.72 and 55,521.20

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Solution

The fourth proportional to 167,871.14, 251,806.72 and 55,521.20 is: 83,281.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,871.14 : 251,806.72 = 55,521.20 : x
  2. Step 2: Convert to fraction form
    167,871.14/251,806.72 = 55,521.20/x
  3. Step 3: Cross multiply
    167,871.14x = 251,806.72 × 55,521.20
  4. Step 4: Simplify right side
    167,871.14x = 13,980,611,262.46
  5. Step 5: Solve for x
    x = 13,980,611,262.46/167,871.14
  6. Step 6: Final answer
    x = 83,281.80

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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.