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Finding the Fourth Proportional to 122,955.20, 184,087.20 and 119,499.20

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Solution

The fourth proportional to 122,955.20, 184,087.20 and 119,499.20 is: 178,912.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,955.20 : 184,087.20 = 119,499.20 : x
  2. Step 2: Convert to fraction form
    122,955.20/184,087.20 = 119,499.20/x
  3. Step 3: Cross multiply
    122,955.20x = 184,087.20 × 119,499.20
  4. Step 4: Simplify right side
    122,955.20x = 21,998,273,130.24
  5. Step 5: Solve for x
    x = 21,998,273,130.24/122,955.20
  6. Step 6: Final answer
    x = 178,912.91

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1.5x scale

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.