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Finding the Fourth Proportional to 126,889.50, 190,334.25 and 43,783.50

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Solution

The fourth proportional to 126,889.50, 190,334.25 and 43,783.50 is: 65,675.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,889.50 : 190,334.25 = 43,783.50 : x
  2. Step 2: Convert to fraction form
    126,889.50/190,334.25 = 43,783.50/x
  3. Step 3: Cross multiply
    126,889.50x = 190,334.25 × 43,783.50
  4. Step 4: Simplify right side
    126,889.50x = 8,333,499,634.88
  5. Step 5: Solve for x
    x = 8,333,499,634.88/126,889.50
  6. Step 6: Final answer
    x = 65,675.25

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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.