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Finding the Fourth Proportional to 190,337.56, 262,654.86 and 105,449.56

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Solution

The fourth proportional to 190,337.56, 262,654.86 and 105,449.56 is: 145,514.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,337.56 : 262,654.86 = 105,449.56 : x
  2. Step 2: Convert to fraction form
    190,337.56/262,654.86 = 105,449.56/x
  3. Step 3: Cross multiply
    190,337.56x = 262,654.86 × 105,449.56
  4. Step 4: Simplify right side
    190,337.56x = 27,696,839,418.86
  5. Step 5: Solve for x
    x = 27,696,839,418.86/190,337.56
  6. Step 6: Final answer
    x = 145,514.31

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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.