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Finding the Fourth Proportional to 69,903.60, 104,855.40 and 34,911.60

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Solution

The fourth proportional to 69,903.60, 104,855.40 and 34,911.60 is: 52,367.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,903.60 : 104,855.40 = 34,911.60 : x
  2. Step 2: Convert to fraction form
    69,903.60/104,855.40 = 34,911.60/x
  3. Step 3: Cross multiply
    69,903.60x = 104,855.40 × 34,911.60
  4. Step 4: Simplify right side
    69,903.60x = 3,660,669,782.64
  5. Step 5: Solve for x
    x = 3,660,669,782.64/69,903.60
  6. Step 6: Final answer
    x = 52,367.40

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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.