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Finding the Fourth Proportional to 74,969.96, 112,460.34 and 22,379.90

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Solution

The fourth proportional to 74,969.96, 112,460.34 and 22,379.90 is: 33,571.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,969.96 : 112,460.34 = 22,379.90 : x
  2. Step 2: Convert to fraction form
    74,969.96/112,460.34 = 22,379.90/x
  3. Step 3: Cross multiply
    74,969.96x = 112,460.34 × 22,379.90
  4. Step 4: Simplify right side
    74,969.96x = 2,516,851,163.17
  5. Step 5: Solve for x
    x = 2,516,851,163.17/74,969.96
  6. Step 6: Final answer
    x = 33,571.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.