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Finding the Fourth Proportional to 69,270.16, 103,843.32 and 27,140.44

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Solution

The fourth proportional to 69,270.16, 103,843.32 and 27,140.44 is: 40,686.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,270.16 : 103,843.32 = 27,140.44 : x
  2. Step 2: Convert to fraction form
    69,270.16/103,843.32 = 27,140.44/x
  3. Step 3: Cross multiply
    69,270.16x = 103,843.32 × 27,140.44
  4. Step 4: Simplify right side
    69,270.16x = 2,818,353,395.86
  5. Step 5: Solve for x
    x = 2,818,353,395.86/69,270.16
  6. Step 6: Final answer
    x = 40,686.40

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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.