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Finding the Fourth Proportional to 173,481.12, 259,508.86 and 138,489.12

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Solution

The fourth proportional to 173,481.12, 259,508.86 and 138,489.12 is: 207,164.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,481.12 : 259,508.86 = 138,489.12 : x
  2. Step 2: Convert to fraction form
    173,481.12/259,508.86 = 138,489.12/x
  3. Step 3: Cross multiply
    173,481.12x = 259,508.86 × 138,489.12
  4. Step 4: Simplify right side
    173,481.12x = 35,939,153,653.60
  5. Step 5: Solve for x
    x = 35,939,153,653.60/173,481.12
  6. Step 6: Final answer
    x = 207,164.64

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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.