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Finding the Fourth Proportional to 122,996.60, 184,494.90 and 67,009.40

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Solution

The fourth proportional to 122,996.60, 184,494.90 and 67,009.40 is: 100,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,996.60 : 184,494.90 = 67,009.40 : x
  2. Step 2: Convert to fraction form
    122,996.60/184,494.90 = 67,009.40/x
  3. Step 3: Cross multiply
    122,996.60x = 184,494.90 × 67,009.40
  4. Step 4: Simplify right side
    122,996.60x = 12,362,892,552.06
  5. Step 5: Solve for x
    x = 12,362,892,552.06/122,996.60
  6. Step 6: Final answer
    x = 100,514.10

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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.