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Finding the Fourth Proportional to 74,905.50, 112,376.73 and 22,314.78

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Solution

The fourth proportional to 74,905.50, 112,376.73 and 22,314.78 is: 33,477.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,905.50 : 112,376.73 = 22,314.78 : x
  2. Step 2: Convert to fraction form
    74,905.50/112,376.73 = 22,314.78/x
  3. Step 3: Cross multiply
    74,905.50x = 112,376.73 × 22,314.78
  4. Step 4: Simplify right side
    74,905.50x = 2,507,662,007.07
  5. Step 5: Solve for x
    x = 2,507,662,007.07/74,905.50
  6. Step 6: Final answer
    x = 33,477.68

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