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Finding the Fourth Proportional to 69,476.74, 104,212.37 and 48,355.79

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Solution

The fourth proportional to 69,476.74, 104,212.37 and 48,355.79 is: 72,531.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,476.74 : 104,212.37 = 48,355.79 : x
  2. Step 2: Convert to fraction form
    69,476.74/104,212.37 = 48,355.79/x
  3. Step 3: Cross multiply
    69,476.74x = 104,212.37 × 48,355.79
  4. Step 4: Simplify right side
    69,476.74x = 5,039,271,078.95
  5. Step 5: Solve for x
    x = 5,039,271,078.95/69,476.74
  6. Step 6: Final answer
    x = 72,531.77

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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.