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Finding the Fourth Proportional to 122,968.60, 184,452.90 and 120,635.80

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Solution

The fourth proportional to 122,968.60, 184,452.90 and 120,635.80 is: 180,953.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,968.60 : 184,452.90 = 120,635.80 : x
  2. Step 2: Convert to fraction form
    122,968.60/184,452.90 = 120,635.80/x
  3. Step 3: Cross multiply
    122,968.60x = 184,452.90 × 120,635.80
  4. Step 4: Simplify right side
    122,968.60x = 22,251,623,153.82
  5. Step 5: Solve for x
    x = 22,251,623,153.82/122,968.60
  6. Step 6: Final answer
    x = 180,953.70

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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.