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Finding the Fourth Proportional to 75,466.48, 104,144.36 and 47,188.56

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Solution

The fourth proportional to 75,466.48, 104,144.36 and 47,188.56 is: 65,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,466.48 : 104,144.36 = 47,188.56 : x
  2. Step 2: Convert to fraction form
    75,466.48/104,144.36 = 47,188.56/x
  3. Step 3: Cross multiply
    75,466.48x = 104,144.36 × 47,188.56
  4. Step 4: Simplify right side
    75,466.48x = 4,914,422,380.52
  5. Step 5: Solve for x
    x = 4,914,422,380.52/75,466.48
  6. Step 6: Final answer
    x = 65,120.60

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1.5x scale

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.