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Finding the Fourth Proportional to 104,643.82, 156,971.18 and 34,528.60

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Solution

The fourth proportional to 104,643.82, 156,971.18 and 34,528.60 is: 51,794.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,643.82 : 156,971.18 = 34,528.60 : x
  2. Step 2: Convert to fraction form
    104,643.82/156,971.18 = 34,528.60/x
  3. Step 3: Cross multiply
    104,643.82x = 156,971.18 × 34,528.60
  4. Step 4: Simplify right side
    104,643.82x = 5,419,995,085.75
  5. Step 5: Solve for x
    x = 5,419,995,085.75/104,643.82
  6. Step 6: Final answer
    x = 51,794.70

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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.