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Finding the Fourth Proportional to 184,425.70, 276,638.55 and 90,919.30

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Solution

The fourth proportional to 184,425.70, 276,638.55 and 90,919.30 is: 136,378.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,425.70 : 276,638.55 = 90,919.30 : x
  2. Step 2: Convert to fraction form
    184,425.70/276,638.55 = 90,919.30/x
  3. Step 3: Cross multiply
    184,425.70x = 276,638.55 × 90,919.30
  4. Step 4: Simplify right side
    184,425.70x = 25,151,783,319.02
  5. Step 5: Solve for x
    x = 25,151,783,319.02/184,425.70
  6. Step 6: Final answer
    x = 136,378.95

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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.