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Finding the Fourth Proportional to 122,999.70, 184,499.55 and 101,129.70

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Solution

The fourth proportional to 122,999.70, 184,499.55 and 101,129.70 is: 151,694.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,999.70 : 184,499.55 = 101,129.70 : x
  2. Step 2: Convert to fraction form
    122,999.70/184,499.55 = 101,129.70/x
  3. Step 3: Cross multiply
    122,999.70x = 184,499.55 × 101,129.70
  4. Step 4: Simplify right side
    122,999.70x = 18,658,384,141.64
  5. Step 5: Solve for x
    x = 18,658,384,141.64/122,999.70
  6. Step 6: Final answer
    x = 151,694.55

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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.