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Finding the Fourth Proportional to 186,463.80, 279,527.76 and 68,052.06

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Solution

The fourth proportional to 186,463.80, 279,527.76 and 68,052.06 is: 102,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,463.80 : 279,527.76 = 68,052.06 : x
  2. Step 2: Convert to fraction form
    186,463.80/279,527.76 = 68,052.06/x
  3. Step 3: Cross multiply
    186,463.80x = 279,527.76 × 68,052.06
  4. Step 4: Simplify right side
    186,463.80x = 19,022,439,895.19
  5. Step 5: Solve for x
    x = 19,022,439,895.19/186,463.80
  6. Step 6: Final answer
    x = 102,016.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.