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Finding the Fourth Proportional to 207,850.75, 311,776.78 and 58,090.05

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Solution

The fourth proportional to 207,850.75, 311,776.78 and 58,090.05 is: 87,135.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,850.75 : 311,776.78 = 58,090.05 : x
  2. Step 2: Convert to fraction form
    207,850.75/311,776.78 = 58,090.05/x
  3. Step 3: Cross multiply
    207,850.75x = 311,776.78 × 58,090.05
  4. Step 4: Simplify right side
    207,850.75x = 18,111,128,739.04
  5. Step 5: Solve for x
    x = 18,111,128,739.04/207,850.75
  6. Step 6: Final answer
    x = 87,135.26

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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.