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Finding the Fourth Proportional to 104,074.56, 156,111.12 and 25,189.20

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Solution

The fourth proportional to 104,074.56, 156,111.12 and 25,189.20 is: 37,783.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,074.56 : 156,111.12 = 25,189.20 : x
  2. Step 2: Convert to fraction form
    104,074.56/156,111.12 = 25,189.20/x
  3. Step 3: Cross multiply
    104,074.56x = 156,111.12 × 25,189.20
  4. Step 4: Simplify right side
    104,074.56x = 3,932,314,223.90
  5. Step 5: Solve for x
    x = 3,932,314,223.90/104,074.56
  6. Step 6: Final answer
    x = 37,783.63

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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.