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Finding the Fourth Proportional to 114,491.34, 171,702.02 and 79,179.60

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Solution

The fourth proportional to 114,491.34, 171,702.02 and 79,179.60 is: 118,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,491.34 : 171,702.02 = 79,179.60 : x
  2. Step 2: Convert to fraction form
    114,491.34/171,702.02 = 79,179.60/x
  3. Step 3: Cross multiply
    114,491.34x = 171,702.02 × 79,179.60
  4. Step 4: Simplify right side
    114,491.34x = 13,595,297,262.79
  5. Step 5: Solve for x
    x = 13,595,297,262.79/114,491.34
  6. Step 6: Final answer
    x = 118,745.20

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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.