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Finding the Fourth Proportional to 236,096.76, 325,804.05 and 128,664.51

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Solution

The fourth proportional to 236,096.76, 325,804.05 and 128,664.51 is: 177,551.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,096.76 : 325,804.05 = 128,664.51 : x
  2. Step 2: Convert to fraction form
    236,096.76/325,804.05 = 128,664.51/x
  3. Step 3: Cross multiply
    236,096.76x = 325,804.05 × 128,664.51
  4. Step 4: Simplify right side
    236,096.76x = 41,919,418,449.27
  5. Step 5: Solve for x
    x = 41,919,418,449.27/236,096.76
  6. Step 6: Final answer
    x = 177,551.86

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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.