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Finding the Fourth Proportional to 126,512.88, 189,762.84 and 37,767.12

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Solution

The fourth proportional to 126,512.88, 189,762.84 and 37,767.12 is: 56,648.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,512.88 : 189,762.84 = 37,767.12 : x
  2. Step 2: Convert to fraction form
    126,512.88/189,762.84 = 37,767.12/x
  3. Step 3: Cross multiply
    126,512.88x = 189,762.84 × 37,767.12
  4. Step 4: Simplify right side
    126,512.88x = 7,166,795,949.82
  5. Step 5: Solve for x
    x = 7,166,795,949.82/126,512.88
  6. Step 6: Final answer
    x = 56,648.75

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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.