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Finding the Fourth Proportional to 69,208.20, 103,812.30 and 34,216.20

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Solution

The fourth proportional to 69,208.20, 103,812.30 and 34,216.20 is: 51,324.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,208.20 : 103,812.30 = 34,216.20 : x
  2. Step 2: Convert to fraction form
    69,208.20/103,812.30 = 34,216.20/x
  3. Step 3: Cross multiply
    69,208.20x = 103,812.30 × 34,216.20
  4. Step 4: Simplify right side
    69,208.20x = 3,552,062,419.26
  5. Step 5: Solve for x
    x = 3,552,062,419.26/69,208.20
  6. Step 6: Final answer
    x = 51,324.30

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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.