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Finding the Fourth Proportional to 122,961.70, 184,442.55 and 101,091.70

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Solution

The fourth proportional to 122,961.70, 184,442.55 and 101,091.70 is: 151,637.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,961.70 : 184,442.55 = 101,091.70 : x
  2. Step 2: Convert to fraction form
    122,961.70/184,442.55 = 101,091.70/x
  3. Step 3: Cross multiply
    122,961.70x = 184,442.55 × 101,091.70
  4. Step 4: Simplify right side
    122,961.70x = 18,645,610,931.84
  5. Step 5: Solve for x
    x = 18,645,610,931.84/122,961.70
  6. Step 6: Final answer
    x = 151,637.55

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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.