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Finding the Fourth Proportional to 167,986.71, 252,006.80 and 55,670.90

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Solution

The fourth proportional to 167,986.71, 252,006.80 and 55,670.90 is: 83,515.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,986.71 : 252,006.80 = 55,670.90 : x
  2. Step 2: Convert to fraction form
    167,986.71/252,006.80 = 55,670.90/x
  3. Step 3: Cross multiply
    167,986.71x = 252,006.80 × 55,670.90
  4. Step 4: Simplify right side
    167,986.71x = 14,029,443,823.73
  5. Step 5: Solve for x
    x = 14,029,443,823.73/167,986.71
  6. Step 6: Final answer
    x = 83,515.20

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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.