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Finding the Fourth Proportional to 122,843.73, 184,270.86 and 42,889.77

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Solution

The fourth proportional to 122,843.73, 184,270.86 and 42,889.77 is: 64,336.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,843.73 : 184,270.86 = 42,889.77 : x
  2. Step 2: Convert to fraction form
    122,843.73/184,270.86 = 42,889.77/x
  3. Step 3: Cross multiply
    122,843.73x = 184,270.86 × 42,889.77
  4. Step 4: Simplify right side
    122,843.73x = 7,903,334,803.10
  5. Step 5: Solve for x
    x = 7,903,334,803.10/122,843.73
  6. Step 6: Final answer
    x = 64,336.49

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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.