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Finding the Fourth Proportional to 236,074.70, 325,783.10 and 128,644.70

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Solution

The fourth proportional to 236,074.70, 325,783.10 and 128,644.70 is: 177,529.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,074.70 : 325,783.10 = 128,644.70 : x
  2. Step 2: Convert to fraction form
    236,074.70/325,783.10 = 128,644.70/x
  3. Step 3: Cross multiply
    236,074.70x = 325,783.10 × 128,644.70
  4. Step 4: Simplify right side
    236,074.70x = 41,910,266,892.43
  5. Step 5: Solve for x
    x = 41,910,266,892.43/236,074.70
  6. Step 6: Final answer
    x = 177,529.69

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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.