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Finding the Fourth Proportional to 54,706.79, 81,972.69 and 49,457.99

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Solution

The fourth proportional to 54,706.79, 81,972.69 and 49,457.99 is: 74,107.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,706.79 : 81,972.69 = 49,457.99 : x
  2. Step 2: Convert to fraction form
    54,706.79/81,972.69 = 49,457.99/x
  3. Step 3: Cross multiply
    54,706.79x = 81,972.69 × 49,457.99
  4. Step 4: Simplify right side
    54,706.79x = 4,054,204,482.29
  5. Step 5: Solve for x
    x = 4,054,204,482.29/54,706.79
  6. Step 6: Final answer
    x = 74,107.88

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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.