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Finding the Fourth Proportional to 71,793.04, 99,076.76 and 39,530.09

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Solution

The fourth proportional to 71,793.04, 99,076.76 and 39,530.09 is: 54,552.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,793.04 : 99,076.76 = 39,530.09 : x
  2. Step 2: Convert to fraction form
    71,793.04/99,076.76 = 39,530.09/x
  3. Step 3: Cross multiply
    71,793.04x = 99,076.76 × 39,530.09
  4. Step 4: Simplify right side
    71,793.04x = 3,916,513,239.71
  5. Step 5: Solve for x
    x = 3,916,513,239.71/71,793.04
  6. Step 6: Final answer
    x = 54,552.83

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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.