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Finding the Fourth Proportional to 218,535.32, 327,859.32 and 118,669.88

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Solution

The fourth proportional to 218,535.32, 327,859.32 and 118,669.88 is: 178,035.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,535.32 : 327,859.32 = 118,669.88 : x
  2. Step 2: Convert to fraction form
    218,535.32/327,859.32 = 118,669.88/x
  3. Step 3: Cross multiply
    218,535.32x = 327,859.32 × 118,669.88
  4. Step 4: Simplify right side
    218,535.32x = 38,907,026,161.28
  5. Step 5: Solve for x
    x = 38,907,026,161.28/218,535.32
  6. Step 6: Final answer
    x = 178,035.41

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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.