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Finding the Fourth Proportional to 69,461.94, 104,180.83 and 19,530.18

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Solution

The fourth proportional to 69,461.94, 104,180.83 and 19,530.18 is: 29,291.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,461.94 : 104,180.83 = 19,530.18 : x
  2. Step 2: Convert to fraction form
    69,461.94/104,180.83 = 19,530.18/x
  3. Step 3: Cross multiply
    69,461.94x = 104,180.83 × 19,530.18
  4. Step 4: Simplify right side
    69,461.94x = 2,034,670,622.90
  5. Step 5: Solve for x
    x = 2,034,670,622.90/69,461.94
  6. Step 6: Final answer
    x = 29,291.88

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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.