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Finding the Fourth Proportional to 126,900.48, 190,380.48 and 67,704.96

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Solution

The fourth proportional to 126,900.48, 190,380.48 and 67,704.96 is: 101,573.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,900.48 : 190,380.48 = 67,704.96 : x
  2. Step 2: Convert to fraction form
    126,900.48/190,380.48 = 67,704.96/x
  3. Step 3: Cross multiply
    126,900.48x = 190,380.48 × 67,704.96
  4. Step 4: Simplify right side
    126,900.48x = 12,889,702,783.18
  5. Step 5: Solve for x
    x = 12,889,702,783.18/126,900.48
  6. Step 6: Final answer
    x = 101,573.32

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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.