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Finding the Fourth Proportional to 103,236.44, 154,750.08 and 69,959.87

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Solution

The fourth proportional to 103,236.44, 154,750.08 and 69,959.87 is: 104,868.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,236.44 : 154,750.08 = 69,959.87 : x
  2. Step 2: Convert to fraction form
    103,236.44/154,750.08 = 69,959.87/x
  3. Step 3: Cross multiply
    103,236.44x = 154,750.08 × 69,959.87
  4. Step 4: Simplify right side
    103,236.44x = 10,826,295,479.29
  5. Step 5: Solve for x
    x = 10,826,295,479.29/103,236.44
  6. Step 6: Final answer
    x = 104,868.93

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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.