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Finding the Fourth Proportional to 71,329.96, 98,375.56 and 45,840.48

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Solution

The fourth proportional to 71,329.96, 98,375.56 and 45,840.48 is: 63,221.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,329.96 : 98,375.56 = 45,840.48 : x
  2. Step 2: Convert to fraction form
    71,329.96/98,375.56 = 45,840.48/x
  3. Step 3: Cross multiply
    71,329.96x = 98,375.56 × 45,840.48
  4. Step 4: Simplify right side
    71,329.96x = 4,509,582,890.67
  5. Step 5: Solve for x
    x = 4,509,582,890.67/71,329.96
  6. Step 6: Final answer
    x = 63,221.44

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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.