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Finding the Fourth Proportional to 54,563.64, 74,971.47 and 43,366.20

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Solution

The fourth proportional to 54,563.64, 74,971.47 and 43,366.20 is: 59,585.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,563.64 : 74,971.47 = 43,366.20 : x
  2. Step 2: Convert to fraction form
    54,563.64/74,971.47 = 43,366.20/x
  3. Step 3: Cross multiply
    54,563.64x = 74,971.47 × 43,366.20
  4. Step 4: Simplify right side
    54,563.64x = 3,251,227,762.31
  5. Step 5: Solve for x
    x = 3,251,227,762.31/54,563.64
  6. Step 6: Final answer
    x = 59,585.98

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.