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Finding the Fourth Proportional to 71,103.40, 106,601.10 and 36,068.20

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Solution

The fourth proportional to 71,103.40, 106,601.10 and 36,068.20 is: 54,074.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,103.40 : 106,601.10 = 36,068.20 : x
  2. Step 2: Convert to fraction form
    71,103.40/106,601.10 = 36,068.20/x
  3. Step 3: Cross multiply
    71,103.40x = 106,601.10 × 36,068.20
  4. Step 4: Simplify right side
    71,103.40x = 3,844,909,795.02
  5. Step 5: Solve for x
    x = 3,844,909,795.02/71,103.40
  6. Step 6: Final answer
    x = 54,074.91

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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.