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Finding the Fourth Proportional to 324,480.60, 486,187.13 and 111,130.86

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Solution

The fourth proportional to 324,480.60, 486,187.13 and 111,130.86 is: 166,513.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,480.60 : 486,187.13 = 111,130.86 : x
  2. Step 2: Convert to fraction form
    324,480.60/486,187.13 = 111,130.86/x
  3. Step 3: Cross multiply
    324,480.60x = 486,187.13 × 111,130.86
  4. Step 4: Simplify right side
    324,480.60x = 54,030,391,724.72
  5. Step 5: Solve for x
    x = 54,030,391,724.72/324,480.60
  6. Step 6: Final answer
    x = 166,513.48

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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.