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Finding the Fourth Proportional to 74,577.60, 111,927.60 and 73,994.40

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Solution

The fourth proportional to 74,577.60, 111,927.60 and 73,994.40 is: 111,052.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,577.60 : 111,927.60 = 73,994.40 : x
  2. Step 2: Convert to fraction form
    74,577.60/111,927.60 = 73,994.40/x
  3. Step 3: Cross multiply
    74,577.60x = 111,927.60 × 73,994.40
  4. Step 4: Simplify right side
    74,577.60x = 8,282,015,605.44
  5. Step 5: Solve for x
    x = 8,282,015,605.44/74,577.60
  6. Step 6: Final answer
    x = 111,052.32

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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.