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Finding the Fourth Proportional to 149,425.70, 224,138.55 and 55,919.30

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Solution

The fourth proportional to 149,425.70, 224,138.55 and 55,919.30 is: 83,878.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,425.70 : 224,138.55 = 55,919.30 : x
  2. Step 2: Convert to fraction form
    149,425.70/224,138.55 = 55,919.30/x
  3. Step 3: Cross multiply
    149,425.70x = 224,138.55 × 55,919.30
  4. Step 4: Simplify right side
    149,425.70x = 12,533,670,819.02
  5. Step 5: Solve for x
    x = 12,533,670,819.02/149,425.70
  6. Step 6: Final answer
    x = 83,878.95

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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.