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Finding the Fourth Proportional to 126,962, 190,427.44 and 73,682.96

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Solution

The fourth proportional to 126,962, 190,427.44 and 73,682.96 is: 110,515.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,962 : 190,427.44 = 73,682.96 : x
  2. Step 2: Convert to fraction form
    126,962/190,427.44 = 73,682.96/x
  3. Step 3: Cross multiply
    126,962x = 190,427.44 × 73,682.96
  4. Step 4: Simplify right side
    126,962x = 14,031,257,444.42
  5. Step 5: Solve for x
    x = 14,031,257,444.42/126,962
  6. Step 6: Final answer
    x = 110,515.41

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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.