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Finding the Fourth Proportional to 192,489.68, 265,644 and 107,606.72

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Solution

The fourth proportional to 192,489.68, 265,644 and 107,606.72 is: 148,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,489.68 : 265,644 = 107,606.72 : x
  2. Step 2: Convert to fraction form
    192,489.68/265,644 = 107,606.72/x
  3. Step 3: Cross multiply
    192,489.68x = 265,644 × 107,606.72
  4. Step 4: Simplify right side
    192,489.68x = 28,585,079,527.68
  5. Step 5: Solve for x
    x = 28,585,079,527.68/192,489.68
  6. Step 6: Final answer
    x = 148,501.88

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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.