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Finding the Fourth Proportional to 69,470.55, 104,211.99 and 19,551.06

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Solution

The fourth proportional to 69,470.55, 104,211.99 and 19,551.06 is: 29,328.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,470.55 : 104,211.99 = 19,551.06 : x
  2. Step 2: Convert to fraction form
    69,470.55/104,211.99 = 19,551.06/x
  3. Step 3: Cross multiply
    69,470.55x = 104,211.99 × 19,551.06
  4. Step 4: Simplify right side
    69,470.55x = 2,037,454,869.21
  5. Step 5: Solve for x
    x = 2,037,454,869.21/69,470.55
  6. Step 6: Final answer
    x = 29,328.33

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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.