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Finding the Fourth Proportional to 71,657.26, 98,896.35 and 43,363.42

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Solution

The fourth proportional to 71,657.26, 98,896.35 and 43,363.42 is: 59,847.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,657.26 : 98,896.35 = 43,363.42 : x
  2. Step 2: Convert to fraction form
    71,657.26/98,896.35 = 43,363.42/x
  3. Step 3: Cross multiply
    71,657.26x = 98,896.35 × 43,363.42
  4. Step 4: Simplify right side
    71,657.26x = 4,288,483,961.52
  5. Step 5: Solve for x
    x = 4,288,483,961.52/71,657.26
  6. Step 6: Final answer
    x = 59,847.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.