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Finding the Fourth Proportional to 190,415.88, 262,470.78 and 150,064.92

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Solution

The fourth proportional to 190,415.88, 262,470.78 and 150,064.92 is: 206,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,415.88 : 262,470.78 = 150,064.92 : x
  2. Step 2: Convert to fraction form
    190,415.88/262,470.78 = 150,064.92/x
  3. Step 3: Cross multiply
    190,415.88x = 262,470.78 × 150,064.92
  4. Step 4: Simplify right side
    190,415.88x = 39,387,656,603.04
  5. Step 5: Solve for x
    x = 39,387,656,603.04/190,415.88
  6. Step 6: Final answer
    x = 206,850.69

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1.5x scale

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.