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Finding the Fourth Proportional to 190,286, 262,591.67 and 104,244.25

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Solution

The fourth proportional to 190,286, 262,591.67 and 104,244.25 is: 143,855.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,286 : 262,591.67 = 104,244.25 : x
  2. Step 2: Convert to fraction form
    190,286/262,591.67 = 104,244.25/x
  3. Step 3: Cross multiply
    190,286x = 262,591.67 × 104,244.25
  4. Step 4: Simplify right side
    190,286x = 27,373,671,695.40
  5. Step 5: Solve for x
    x = 27,373,671,695.40/190,286
  6. Step 6: Final answer
    x = 143,855.42

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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.