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Finding the Fourth Proportional to 190,176, 262,441.89 and 104,133.42

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Solution

The fourth proportional to 190,176, 262,441.89 and 104,133.42 is: 143,703.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,176 : 262,441.89 = 104,133.42 : x
  2. Step 2: Convert to fraction form
    190,176/262,441.89 = 104,133.42/x
  3. Step 3: Cross multiply
    190,176x = 262,441.89 × 104,133.42
  4. Step 4: Simplify right side
    190,176x = 27,328,971,556.96
  5. Step 5: Solve for x
    x = 27,328,971,556.96/190,176
  6. Step 6: Final answer
    x = 143,703.58

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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.