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Finding the Fourth Proportional to 69,959.20, 104,929.20 and 23,207.20

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Solution

The fourth proportional to 69,959.20, 104,929.20 and 23,207.20 is: 34,807.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,959.20 : 104,929.20 = 23,207.20 : x
  2. Step 2: Convert to fraction form
    69,959.20/104,929.20 = 23,207.20/x
  3. Step 3: Cross multiply
    69,959.20x = 104,929.20 × 23,207.20
  4. Step 4: Simplify right side
    69,959.20x = 2,435,112,930.24
  5. Step 5: Solve for x
    x = 2,435,112,930.24/69,959.20
  6. Step 6: Final answer
    x = 34,807.62

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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.