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Finding the Fourth Proportional to 71,173.81, 106,760.71 and 29,073.76

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Solution

The fourth proportional to 71,173.81, 106,760.71 and 29,073.76 is: 43,610.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,173.81 : 106,760.71 = 29,073.76 : x
  2. Step 2: Convert to fraction form
    71,173.81/106,760.71 = 29,073.76/x
  3. Step 3: Cross multiply
    71,173.81x = 106,760.71 × 29,073.76
  4. Step 4: Simplify right side
    71,173.81x = 3,103,935,259.97
  5. Step 5: Solve for x
    x = 3,103,935,259.97/71,173.81
  6. Step 6: Final answer
    x = 43,610.64

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1.5x scale

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.