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Finding the Fourth Proportional to 66,497.33, 100,190.21 and 60,180.69

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Solution

The fourth proportional to 66,497.33, 100,190.21 and 60,180.69 is: 90,673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,497.33 : 100,190.21 = 60,180.69 : x
  2. Step 2: Convert to fraction form
    66,497.33/100,190.21 = 60,180.69/x
  3. Step 3: Cross multiply
    66,497.33x = 100,190.21 × 60,180.69
  4. Step 4: Simplify right side
    66,497.33x = 6,029,515,969.04
  5. Step 5: Solve for x
    x = 6,029,515,969.04/66,497.33
  6. Step 6: Final answer
    x = 90,673.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.