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Finding the Fourth Proportional to 192,671.96, 265,883.06 and 105,456.62

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Solution

The fourth proportional to 192,671.96, 265,883.06 and 105,456.62 is: 145,527.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,671.96 : 265,883.06 = 105,456.62 : x
  2. Step 2: Convert to fraction form
    192,671.96/265,883.06 = 105,456.62/x
  3. Step 3: Cross multiply
    192,671.96x = 265,883.06 × 105,456.62
  4. Step 4: Simplify right side
    192,671.96x = 28,039,126,966.16
  5. Step 5: Solve for x
    x = 28,039,126,966.16/192,671.96
  6. Step 6: Final answer
    x = 145,527.81

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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.