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Finding the Fourth Proportional to 259,990.37, 389,736.42 and 110,024.32

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Solution

The fourth proportional to 259,990.37, 389,736.42 and 110,024.32 is: 164,931.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,990.37 : 389,736.42 = 110,024.32 : x
  2. Step 2: Convert to fraction form
    259,990.37/389,736.42 = 110,024.32/x
  3. Step 3: Cross multiply
    259,990.37x = 389,736.42 × 110,024.32
  4. Step 4: Simplify right side
    259,990.37x = 42,880,483,202.80
  5. Step 5: Solve for x
    x = 42,880,483,202.80/259,990.37
  6. Step 6: Final answer
    x = 164,931.04

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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.