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Finding the Fourth Proportional to 74,378.85, 102,628.37 and 44,173.64

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Solution

The fourth proportional to 74,378.85, 102,628.37 and 44,173.64 is: 60,951.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,378.85 : 102,628.37 = 44,173.64 : x
  2. Step 2: Convert to fraction form
    74,378.85/102,628.37 = 44,173.64/x
  3. Step 3: Cross multiply
    74,378.85x = 102,628.37 × 44,173.64
  4. Step 4: Simplify right side
    74,378.85x = 4,533,468,981.12
  5. Step 5: Solve for x
    x = 4,533,468,981.12/74,378.85
  6. Step 6: Final answer
    x = 60,951.05

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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.