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Finding the Fourth Proportional to 273,932.75, 378,020.16 and 153,075.03

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Solution

The fourth proportional to 273,932.75, 378,020.16 and 153,075.03 is: 211,239.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,932.75 : 378,020.16 = 153,075.03 : x
  2. Step 2: Convert to fraction form
    273,932.75/378,020.16 = 153,075.03/x
  3. Step 3: Cross multiply
    273,932.75x = 378,020.16 × 153,075.03
  4. Step 4: Simplify right side
    273,932.75x = 57,865,447,332.60
  5. Step 5: Solve for x
    x = 57,865,447,332.60/273,932.75
  6. Step 6: Final answer
    x = 211,239.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.