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Finding the Fourth Proportional to 100,644.66, 150,988.77 and 30,529.26

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Solution

The fourth proportional to 100,644.66, 150,988.77 and 30,529.26 is: 45,800.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,644.66 : 150,988.77 = 30,529.26 : x
  2. Step 2: Convert to fraction form
    100,644.66/150,988.77 = 30,529.26/x
  3. Step 3: Cross multiply
    100,644.66x = 150,988.77 × 30,529.26
  4. Step 4: Simplify right side
    100,644.66x = 4,609,575,416.41
  5. Step 5: Solve for x
    x = 4,609,575,416.41/100,644.66
  6. Step 6: Final answer
    x = 45,800.50

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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.