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Finding the Fourth Proportional to 120,879, 181,324.98 and 37,779.48

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Solution

The fourth proportional to 120,879, 181,324.98 and 37,779.48 is: 56,671.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,879 : 181,324.98 = 37,779.48 : x
  2. Step 2: Convert to fraction form
    120,879/181,324.98 = 37,779.48/x
  3. Step 3: Cross multiply
    120,879x = 181,324.98 × 37,779.48
  4. Step 4: Simplify right side
    120,879x = 6,850,363,455.41
  5. Step 5: Solve for x
    x = 6,850,363,455.41/120,879
  6. Step 6: Final answer
    x = 56,671.25

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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.