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Finding the Fourth Proportional to 54,534.44, 81,347.43 and 53,631.29

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Solution

The fourth proportional to 54,534.44, 81,347.43 and 53,631.29 is: 80,000.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,534.44 : 81,347.43 = 53,631.29 : x
  2. Step 2: Convert to fraction form
    54,534.44/81,347.43 = 53,631.29/x
  3. Step 3: Cross multiply
    54,534.44x = 81,347.43 × 53,631.29
  4. Step 4: Simplify right side
    54,534.44x = 4,362,767,609.08
  5. Step 5: Solve for x
    x = 4,362,767,609.08/54,534.44
  6. Step 6: Final answer
    x = 80,000.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.