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Finding the Fourth Proportional to 69,079.76, 103,619.64 and 27,527.12

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Solution

The fourth proportional to 69,079.76, 103,619.64 and 27,527.12 is: 41,290.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,079.76 : 103,619.64 = 27,527.12 : x
  2. Step 2: Convert to fraction form
    69,079.76/103,619.64 = 27,527.12/x
  3. Step 3: Cross multiply
    69,079.76x = 103,619.64 × 27,527.12
  4. Step 4: Simplify right side
    69,079.76x = 2,852,350,264.64
  5. Step 5: Solve for x
    x = 2,852,350,264.64/69,079.76
  6. Step 6: Final answer
    x = 41,290.68

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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.