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Finding the Fourth Proportional to 100,666.68, 150,992.15 and 58,519.88

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Solution

The fourth proportional to 100,666.68, 150,992.15 and 58,519.88 is: 87,775.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,666.68 : 150,992.15 = 58,519.88 : x
  2. Step 2: Convert to fraction form
    100,666.68/150,992.15 = 58,519.88/x
  3. Step 3: Cross multiply
    100,666.68x = 150,992.15 × 58,519.88
  4. Step 4: Simplify right side
    100,666.68x = 8,836,042,017.60
  5. Step 5: Solve for x
    x = 8,836,042,017.60/100,666.68
  6. Step 6: Final answer
    x = 87,775.24

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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.