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Finding the Fourth Proportional to 245,716.20, 368,574.30 and 79,504.20

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Solution

The fourth proportional to 245,716.20, 368,574.30 and 79,504.20 is: 119,256.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,716.20 : 368,574.30 = 79,504.20 : x
  2. Step 2: Convert to fraction form
    245,716.20/368,574.30 = 79,504.20/x
  3. Step 3: Cross multiply
    245,716.20x = 368,574.30 × 79,504.20
  4. Step 4: Simplify right side
    245,716.20x = 29,303,204,862.06
  5. Step 5: Solve for x
    x = 29,303,204,862.06/245,716.20
  6. Step 6: Final answer
    x = 119,256.30

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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.