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Finding the Fourth Proportional to 69,272.16, 103,947.04 and 27,722.40

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Solution

The fourth proportional to 69,272.16, 103,947.04 and 27,722.40 is: 41,599.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,272.16 : 103,947.04 = 27,722.40 : x
  2. Step 2: Convert to fraction form
    69,272.16/103,947.04 = 27,722.40/x
  3. Step 3: Cross multiply
    69,272.16x = 103,947.04 × 27,722.40
  4. Step 4: Simplify right side
    69,272.16x = 2,881,661,421.70
  5. Step 5: Solve for x
    x = 2,881,661,421.70/69,272.16
  6. Step 6: Final answer
    x = 41,599.13

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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.