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Finding the Fourth Proportional to 216,713.96, 325,135.33 and 104,361.69

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Solution

The fourth proportional to 216,713.96, 325,135.33 and 104,361.69 is: 156,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,713.96 : 325,135.33 = 104,361.69 : x
  2. Step 2: Convert to fraction form
    216,713.96/325,135.33 = 104,361.69/x
  3. Step 3: Cross multiply
    216,713.96x = 325,135.33 × 104,361.69
  4. Step 4: Simplify right side
    216,713.96x = 33,931,672,517.51
  5. Step 5: Solve for x
    x = 33,931,672,517.51/216,713.96
  6. Step 6: Final answer
    x = 156,573.55

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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.