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Finding the Fourth Proportional to 85,512.37, 118,040.37 and 76,544.36

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Solution

The fourth proportional to 85,512.37, 118,040.37 and 76,544.36 is: 105,661.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,512.37 : 118,040.37 = 76,544.36 : x
  2. Step 2: Convert to fraction form
    85,512.37/118,040.37 = 76,544.36/x
  3. Step 3: Cross multiply
    85,512.37x = 118,040.37 × 76,544.36
  4. Step 4: Simplify right side
    85,512.37x = 9,035,324,583.87
  5. Step 5: Solve for x
    x = 9,035,324,583.87/85,512.37
  6. Step 6: Final answer
    x = 105,661.03

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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.