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Finding the Fourth Proportional to 100,568.90, 150,915.65 and 58,468.80

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Solution

The fourth proportional to 100,568.90, 150,915.65 and 58,468.80 is: 87,739.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,568.90 : 150,915.65 = 58,468.80 : x
  2. Step 2: Convert to fraction form
    100,568.90/150,915.65 = 58,468.80/x
  3. Step 3: Cross multiply
    100,568.90x = 150,915.65 × 58,468.80
  4. Step 4: Simplify right side
    100,568.90x = 8,823,856,883.63
  5. Step 5: Solve for x
    x = 8,823,856,883.63/100,568.90
  6. Step 6: Final answer
    x = 87,739.42

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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.