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Finding the Fourth Proportional to 70,364.70, 97,103.61 and 38,536.56

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Solution

The fourth proportional to 70,364.70, 97,103.61 and 38,536.56 is: 53,180.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,364.70 : 97,103.61 = 38,536.56 : x
  2. Step 2: Convert to fraction form
    70,364.70/97,103.61 = 38,536.56/x
  3. Step 3: Cross multiply
    70,364.70x = 97,103.61 × 38,536.56
  4. Step 4: Simplify right side
    70,364.70x = 3,742,039,092.98
  5. Step 5: Solve for x
    x = 3,742,039,092.98/70,364.70
  6. Step 6: Final answer
    x = 53,180.63

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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.