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Finding the Fourth Proportional to 126,108.96, 188,990.64 and 122,324.64

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Solution

The fourth proportional to 126,108.96, 188,990.64 and 122,324.64 is: 183,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,108.96 : 188,990.64 = 122,324.64 : x
  2. Step 2: Convert to fraction form
    126,108.96/188,990.64 = 122,324.64/x
  3. Step 3: Cross multiply
    126,108.96x = 188,990.64 × 122,324.64
  4. Step 4: Simplify right side
    126,108.96x = 23,118,212,001.37
  5. Step 5: Solve for x
    x = 23,118,212,001.37/126,108.96
  6. Step 6: Final answer
    x = 183,319.35

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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.