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Finding the Fourth Proportional to 122,997.70, 184,496.55 and 101,127.70

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Solution

The fourth proportional to 122,997.70, 184,496.55 and 101,127.70 is: 151,691.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,997.70 : 184,496.55 = 101,127.70 : x
  2. Step 2: Convert to fraction form
    122,997.70/184,496.55 = 101,127.70/x
  3. Step 3: Cross multiply
    122,997.70x = 184,496.55 × 101,127.70
  4. Step 4: Simplify right side
    122,997.70x = 18,657,711,759.44
  5. Step 5: Solve for x
    x = 18,657,711,759.44/122,997.70
  6. Step 6: Final answer
    x = 151,691.55

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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.