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Finding the Fourth Proportional to 74,600.44, 102,945.39 and 40,608.98

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Solution

The fourth proportional to 74,600.44, 102,945.39 and 40,608.98 is: 56,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,600.44 : 102,945.39 = 40,608.98 : x
  2. Step 2: Convert to fraction form
    74,600.44/102,945.39 = 40,608.98/x
  3. Step 3: Cross multiply
    74,600.44x = 102,945.39 × 40,608.98
  4. Step 4: Simplify right side
    74,600.44x = 4,180,507,283.60
  5. Step 5: Solve for x
    x = 4,180,507,283.60/74,600.44
  6. Step 6: Final answer
    x = 56,038.64

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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.