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Finding the Fourth Proportional to 73,163.30, 109,658.55 and 31,043.30

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Solution

The fourth proportional to 73,163.30, 109,658.55 and 31,043.30 is: 46,528.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,163.30 : 109,658.55 = 31,043.30 : x
  2. Step 2: Convert to fraction form
    73,163.30/109,658.55 = 31,043.30/x
  3. Step 3: Cross multiply
    73,163.30x = 109,658.55 × 31,043.30
  4. Step 4: Simplify right side
    73,163.30x = 3,404,163,265.22
  5. Step 5: Solve for x
    x = 3,404,163,265.22/73,163.30
  6. Step 6: Final answer
    x = 46,528.29

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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.