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Finding the Fourth Proportional to 73,196.91, 101,011.64 and 39,662.91

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Solution

The fourth proportional to 73,196.91, 101,011.64 and 39,662.91 is: 54,734.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,196.91 : 101,011.64 = 39,662.91 : x
  2. Step 2: Convert to fraction form
    73,196.91/101,011.64 = 39,662.91/x
  3. Step 3: Cross multiply
    73,196.91x = 101,011.64 × 39,662.91
  4. Step 4: Simplify right side
    73,196.91x = 4,006,415,387.96
  5. Step 5: Solve for x
    x = 4,006,415,387.96/73,196.91
  6. Step 6: Final answer
    x = 54,734.76

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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.