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Finding the Fourth Proportional to 70,594.44, 105,793.08 and 39,019.60

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Solution

The fourth proportional to 70,594.44, 105,793.08 and 39,019.60 is: 58,474.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,594.44 : 105,793.08 = 39,019.60 : x
  2. Step 2: Convert to fraction form
    70,594.44/105,793.08 = 39,019.60/x
  3. Step 3: Cross multiply
    70,594.44x = 105,793.08 × 39,019.60
  4. Step 4: Simplify right side
    70,594.44x = 4,128,003,664.37
  5. Step 5: Solve for x
    x = 4,128,003,664.37/70,594.44
  6. Step 6: Final answer
    x = 58,474.91

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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.