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Finding the Fourth Proportional to 122,996.60, 184,494.90 and 120,663.80

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Solution

The fourth proportional to 122,996.60, 184,494.90 and 120,663.80 is: 180,995.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,996.60 : 184,494.90 = 120,663.80 : x
  2. Step 2: Convert to fraction form
    122,996.60/184,494.90 = 120,663.80/x
  3. Step 3: Cross multiply
    122,996.60x = 184,494.90 × 120,663.80
  4. Step 4: Simplify right side
    122,996.60x = 22,261,855,714.62
  5. Step 5: Solve for x
    x = 22,261,855,714.62/122,996.60
  6. Step 6: Final answer
    x = 180,995.70

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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.