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Finding the Fourth Proportional to 54,230.90, 74,800.06 and 49,769.06

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Solution

The fourth proportional to 54,230.90, 74,800.06 and 49,769.06 is: 68,645.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,230.90 : 74,800.06 = 49,769.06 : x
  2. Step 2: Convert to fraction form
    54,230.90/74,800.06 = 49,769.06/x
  3. Step 3: Cross multiply
    54,230.90x = 74,800.06 × 49,769.06
  4. Step 4: Simplify right side
    54,230.90x = 3,722,728,175.72
  5. Step 5: Solve for x
    x = 3,722,728,175.72/54,230.90
  6. Step 6: Final answer
    x = 68,645.89

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1.5x scale

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.