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Finding the Fourth Proportional to 104,257.54, 156,635.58 and 66,891.01

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Solution

The fourth proportional to 104,257.54, 156,635.58 and 66,891.01 is: 100,496.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,257.54 : 156,635.58 = 66,891.01 : x
  2. Step 2: Convert to fraction form
    104,257.54/156,635.58 = 66,891.01/x
  3. Step 3: Cross multiply
    104,257.54x = 156,635.58 × 66,891.01
  4. Step 4: Simplify right side
    104,257.54x = 10,477,512,148.14
  5. Step 5: Solve for x
    x = 10,477,512,148.14/104,257.54
  6. Step 6: Final answer
    x = 100,496.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.