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Finding the Fourth Proportional to 70,634.88, 97,451.28 and 43,749.36

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Solution

The fourth proportional to 70,634.88, 97,451.28 and 43,749.36 is: 60,358.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,634.88 : 97,451.28 = 43,749.36 : x
  2. Step 2: Convert to fraction form
    70,634.88/97,451.28 = 43,749.36/x
  3. Step 3: Cross multiply
    70,634.88x = 97,451.28 × 43,749.36
  4. Step 4: Simplify right side
    70,634.88x = 4,263,431,131.18
  5. Step 5: Solve for x
    x = 4,263,431,131.18/70,634.88
  6. Step 6: Final answer
    x = 60,358.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.