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Finding the Fourth Proportional to 259,034.94, 388,574.28 and 72,046.44

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Solution

The fourth proportional to 259,034.94, 388,574.28 and 72,046.44 is: 108,075.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,034.94 : 388,574.28 = 72,046.44 : x
  2. Step 2: Convert to fraction form
    259,034.94/388,574.28 = 72,046.44/x
  3. Step 3: Cross multiply
    259,034.94x = 388,574.28 × 72,046.44
  4. Step 4: Simplify right side
    259,034.94x = 27,995,393,549.56
  5. Step 5: Solve for x
    x = 27,995,393,549.56/259,034.94
  6. Step 6: Final answer
    x = 108,075.74

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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.