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Finding the Fourth Proportional to 69,718.54, 104,577.68 and 19,799.10

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Solution

The fourth proportional to 69,718.54, 104,577.68 and 19,799.10 is: 29,698.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,718.54 : 104,577.68 = 19,799.10 : x
  2. Step 2: Convert to fraction form
    69,718.54/104,577.68 = 19,799.10/x
  3. Step 3: Cross multiply
    69,718.54x = 104,577.68 × 19,799.10
  4. Step 4: Simplify right side
    69,718.54x = 2,070,543,944.09
  5. Step 5: Solve for x
    x = 2,070,543,944.09/69,718.54
  6. Step 6: Final answer
    x = 29,698.61

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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.