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Finding the Fourth Proportional to 324,007.60, 485,865.60 and 124,261.60

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Solution

The fourth proportional to 324,007.60, 485,865.60 and 124,261.60 is: 186,336.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,007.60 : 485,865.60 = 124,261.60 : x
  2. Step 2: Convert to fraction form
    324,007.60/485,865.60 = 124,261.60/x
  3. Step 3: Cross multiply
    324,007.60x = 485,865.60 × 124,261.60
  4. Step 4: Simplify right side
    324,007.60x = 60,374,436,840.96
  5. Step 5: Solve for x
    x = 60,374,436,840.96/324,007.60
  6. Step 6: Final answer
    x = 186,336.48

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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.