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Finding the Fourth Proportional to 42,240.50, 58,290.99 and 23,120.27

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Solution

The fourth proportional to 42,240.50, 58,290.99 and 23,120.27 is: 31,905.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,240.50 : 58,290.99 = 23,120.27 : x
  2. Step 2: Convert to fraction form
    42,240.50/58,290.99 = 23,120.27/x
  3. Step 3: Cross multiply
    42,240.50x = 58,290.99 × 23,120.27
  4. Step 4: Simplify right side
    42,240.50x = 1,347,703,427.37
  5. Step 5: Solve for x
    x = 1,347,703,427.37/42,240.50
  6. Step 6: Final answer
    x = 31,905.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.