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Finding the Fourth Proportional to 74,427.58, 111,736.14 and 48,241.90

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Solution

The fourth proportional to 74,427.58, 111,736.14 and 48,241.90 is: 72,424.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,427.58 : 111,736.14 = 48,241.90 : x
  2. Step 2: Convert to fraction form
    74,427.58/111,736.14 = 48,241.90/x
  3. Step 3: Cross multiply
    74,427.58x = 111,736.14 × 48,241.90
  4. Step 4: Simplify right side
    74,427.58x = 5,390,363,692.27
  5. Step 5: Solve for x
    x = 5,390,363,692.27/74,427.58
  6. Step 6: Final answer
    x = 72,424.28

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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.