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Finding the Fourth Proportional to 114,491.84, 171,702.78 and 79,180.10

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Solution

The fourth proportional to 114,491.84, 171,702.78 and 79,180.10 is: 118,745.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,491.84 : 171,702.78 = 79,180.10 : x
  2. Step 2: Convert to fraction form
    114,491.84/171,702.78 = 79,180.10/x
  3. Step 3: Cross multiply
    114,491.84x = 171,702.78 × 79,180.10
  4. Step 4: Simplify right side
    114,491.84x = 13,595,443,290.68
  5. Step 5: Solve for x
    x = 13,595,443,290.68/114,491.84
  6. Step 6: Final answer
    x = 118,745.96

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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.