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Finding the Fourth Proportional to 73,176.60, 109,852.16 and 43,608.36

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Solution

The fourth proportional to 73,176.60, 109,852.16 and 43,608.36 is: 65,464.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,176.60 : 109,852.16 = 43,608.36 : x
  2. Step 2: Convert to fraction form
    73,176.60/109,852.16 = 43,608.36/x
  3. Step 3: Cross multiply
    73,176.60x = 109,852.16 × 43,608.36
  4. Step 4: Simplify right side
    73,176.60x = 4,790,472,540.06
  5. Step 5: Solve for x
    x = 4,790,472,540.06/73,176.60
  6. Step 6: Final answer
    x = 65,464.54

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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.