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Finding the Fourth Proportional to 54,068.72, 74,621.18 and 44,978.03

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Solution

The fourth proportional to 54,068.72, 74,621.18 and 44,978.03 is: 62,074.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,068.72 : 74,621.18 = 44,978.03 : x
  2. Step 2: Convert to fraction form
    54,068.72/74,621.18 = 44,978.03/x
  3. Step 3: Cross multiply
    54,068.72x = 74,621.18 × 44,978.03
  4. Step 4: Simplify right side
    54,068.72x = 3,356,313,672.68
  5. Step 5: Solve for x
    x = 3,356,313,672.68/54,068.72
  6. Step 6: Final answer
    x = 62,074.96

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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.