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Finding the Fourth Proportional to 393,014.68, 589,028.73 and 168,110.77

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Solution

The fourth proportional to 393,014.68, 589,028.73 and 168,110.77 is: 251,955.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,014.68 : 589,028.73 = 168,110.77 : x
  2. Step 2: Convert to fraction form
    393,014.68/589,028.73 = 168,110.77/x
  3. Step 3: Cross multiply
    393,014.68x = 589,028.73 × 168,110.77
  4. Step 4: Simplify right side
    393,014.68x = 99,022,073,352.42
  5. Step 5: Solve for x
    x = 99,022,073,352.42/393,014.68
  6. Step 6: Final answer
    x = 251,955.15

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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.