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Finding the Fourth Proportional to 74,977.94, 112,429.82 and 25,040.90

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Solution

The fourth proportional to 74,977.94, 112,429.82 and 25,040.90 is: 37,548.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,977.94 : 112,429.82 = 25,040.90 : x
  2. Step 2: Convert to fraction form
    74,977.94/112,429.82 = 25,040.90/x
  3. Step 3: Cross multiply
    74,977.94x = 112,429.82 × 25,040.90
  4. Step 4: Simplify right side
    74,977.94x = 2,815,343,879.64
  5. Step 5: Solve for x
    x = 2,815,343,879.64/74,977.94
  6. Step 6: Final answer
    x = 37,548.96

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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.