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Finding the Fourth Proportional to 193,840.60, 291,408.90 and 168,179.80

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Solution

The fourth proportional to 193,840.60, 291,408.90 and 168,179.80 is: 252,831.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,840.60 : 291,408.90 = 168,179.80 : x
  2. Step 2: Convert to fraction form
    193,840.60/291,408.90 = 168,179.80/x
  3. Step 3: Cross multiply
    193,840.60x = 291,408.90 × 168,179.80
  4. Step 4: Simplify right side
    193,840.60x = 49,009,090,520.22
  5. Step 5: Solve for x
    x = 49,009,090,520.22/193,840.60
  6. Step 6: Final answer
    x = 252,831.92

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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.