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Finding the Fourth Proportional to 70,045.56, 96,663.42 and 38,214.72

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Solution

The fourth proportional to 70,045.56, 96,663.42 and 38,214.72 is: 52,736.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,045.56 : 96,663.42 = 38,214.72 : x
  2. Step 2: Convert to fraction form
    70,045.56/96,663.42 = 38,214.72/x
  3. Step 3: Cross multiply
    70,045.56x = 96,663.42 × 38,214.72
  4. Step 4: Simplify right side
    70,045.56x = 3,693,965,529.54
  5. Step 5: Solve for x
    x = 3,693,965,529.54/70,045.56
  6. Step 6: Final answer
    x = 52,736.61

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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.