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Finding the Fourth Proportional to 105,664.42, 158,479.77 and 39,089.41

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Solution

The fourth proportional to 105,664.42, 158,479.77 and 39,089.41 is: 58,627.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,664.42 : 158,479.77 = 39,089.41 : x
  2. Step 2: Convert to fraction form
    105,664.42/158,479.77 = 39,089.41/x
  3. Step 3: Cross multiply
    105,664.42x = 158,479.77 × 39,089.41
  4. Step 4: Simplify right side
    105,664.42x = 6,194,880,456.62
  5. Step 5: Solve for x
    x = 6,194,880,456.62/105,664.42
  6. Step 6: Final answer
    x = 58,627.87

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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.