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Finding the Fourth Proportional to 71,266.43, 106,866.71 and 40,101.68

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Solution

The fourth proportional to 71,266.43, 106,866.71 and 40,101.68 is: 60,133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,266.43 : 106,866.71 = 40,101.68 : x
  2. Step 2: Convert to fraction form
    71,266.43/106,866.71 = 40,101.68/x
  3. Step 3: Cross multiply
    71,266.43x = 106,866.71 × 40,101.68
  4. Step 4: Simplify right side
    71,266.43x = 4,285,534,406.56
  5. Step 5: Solve for x
    x = 4,285,534,406.56/71,266.43
  6. Step 6: Final answer
    x = 60,133.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.