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Finding the Fourth Proportional to 216,741.30, 325,160.39 and 104,515.91

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Solution

The fourth proportional to 216,741.30, 325,160.39 and 104,515.91 is: 156,797.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,741.30 : 325,160.39 = 104,515.91 : x
  2. Step 2: Convert to fraction form
    216,741.30/325,160.39 = 104,515.91/x
  3. Step 3: Cross multiply
    216,741.30x = 325,160.39 × 104,515.91
  4. Step 4: Simplify right side
    216,741.30x = 33,984,434,056.80
  5. Step 5: Solve for x
    x = 33,984,434,056.80/216,741.30
  6. Step 6: Final answer
    x = 156,797.22

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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.