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Finding the Fourth Proportional to 74,893.70, 112,260.62 and 37,379.90

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Solution

The fourth proportional to 74,893.70, 112,260.62 and 37,379.90 is: 56,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,893.70 : 112,260.62 = 37,379.90 : x
  2. Step 2: Convert to fraction form
    74,893.70/112,260.62 = 37,379.90/x
  3. Step 3: Cross multiply
    74,893.70x = 112,260.62 × 37,379.90
  4. Step 4: Simplify right side
    74,893.70x = 4,196,290,001.34
  5. Step 5: Solve for x
    x = 4,196,290,001.34/74,893.70
  6. Step 6: Final answer
    x = 56,029.95

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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.