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Finding the Fourth Proportional to 96,380, 133,086.48 and 60,629.84

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Solution

The fourth proportional to 96,380, 133,086.48 and 60,629.84 is: 83,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,380 : 133,086.48 = 60,629.84 : x
  2. Step 2: Convert to fraction form
    96,380/133,086.48 = 60,629.84/x
  3. Step 3: Cross multiply
    96,380x = 133,086.48 × 60,629.84
  4. Step 4: Simplify right side
    96,380x = 8,069,011,988.56
  5. Step 5: Solve for x
    x = 8,069,011,988.56/96,380
  6. Step 6: Final answer
    x = 83,720.81

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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.