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Finding the Fourth Proportional to 122,998.60, 184,497.90 and 112,112.20

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Solution

The fourth proportional to 122,998.60, 184,497.90 and 112,112.20 is: 168,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,998.60 : 184,497.90 = 112,112.20 : x
  2. Step 2: Convert to fraction form
    122,998.60/184,497.90 = 112,112.20/x
  3. Step 3: Cross multiply
    122,998.60x = 184,497.90 × 112,112.20
  4. Step 4: Simplify right side
    122,998.60x = 20,684,465,464.38
  5. Step 5: Solve for x
    x = 20,684,465,464.38/122,998.60
  6. Step 6: Final answer
    x = 168,168.30

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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.