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Finding the Fourth Proportional to 163,708.48, 225,270.48 and 136,764.64

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Solution

The fourth proportional to 163,708.48, 225,270.48 and 136,764.64 is: 188,194.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,708.48 : 225,270.48 = 136,764.64 : x
  2. Step 2: Convert to fraction form
    163,708.48/225,270.48 = 136,764.64/x
  3. Step 3: Cross multiply
    163,708.48x = 225,270.48 × 136,764.64
  4. Step 4: Simplify right side
    163,708.48x = 30,809,036,099.83
  5. Step 5: Solve for x
    x = 30,809,036,099.83/163,708.48
  6. Step 6: Final answer
    x = 188,194.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.