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Finding the Fourth Proportional to 236,115.96, 325,830.52 and 128,683.69

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Solution

The fourth proportional to 236,115.96, 325,830.52 and 128,683.69 is: 177,578.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,115.96 : 325,830.52 = 128,683.69 : x
  2. Step 2: Convert to fraction form
    236,115.96/325,830.52 = 128,683.69/x
  3. Step 3: Cross multiply
    236,115.96x = 325,830.52 × 128,683.69
  4. Step 4: Simplify right side
    236,115.96x = 41,929,073,628.22
  5. Step 5: Solve for x
    x = 41,929,073,628.22/236,115.96
  6. Step 6: Final answer
    x = 177,578.31

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