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Finding the Fourth Proportional to 190,404, 262,757.52 and 105,526.53

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Solution

The fourth proportional to 190,404, 262,757.52 and 105,526.53 is: 145,626.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,404 : 262,757.52 = 105,526.53 : x
  2. Step 2: Convert to fraction form
    190,404/262,757.52 = 105,526.53/x
  3. Step 3: Cross multiply
    190,404x = 262,757.52 × 105,526.53
  4. Step 4: Simplify right side
    190,404x = 27,727,889,317.01
  5. Step 5: Solve for x
    x = 27,727,889,317.01/190,404
  6. Step 6: Final answer
    x = 145,626.61

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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.