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Finding the Fourth Proportional to 74,622.26, 102,976.32 and 44,400.64

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Solution

The fourth proportional to 74,622.26, 102,976.32 and 44,400.64 is: 61,271.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,622.26 : 102,976.32 = 44,400.64 : x
  2. Step 2: Convert to fraction form
    74,622.26/102,976.32 = 44,400.64/x
  3. Step 3: Cross multiply
    74,622.26x = 102,976.32 × 44,400.64
  4. Step 4: Simplify right side
    74,622.26x = 4,572,214,512.84
  5. Step 5: Solve for x
    x = 4,572,214,512.84/74,622.26
  6. Step 6: Final answer
    x = 61,271.46

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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.