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Finding the Fourth Proportional to 74,594.89, 102,940.84 and 40,603.27

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Solution

The fourth proportional to 74,594.89, 102,940.84 and 40,603.27 is: 56,032.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,594.89 : 102,940.84 = 40,603.27 : x
  2. Step 2: Convert to fraction form
    74,594.89/102,940.84 = 40,603.27/x
  3. Step 3: Cross multiply
    74,594.89x = 102,940.84 × 40,603.27
  4. Step 4: Simplify right side
    74,594.89x = 4,179,734,655.99
  5. Step 5: Solve for x
    x = 4,179,734,655.99/74,594.89
  6. Step 6: Final answer
    x = 56,032.46

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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.