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Finding the Fourth Proportional to 79,046.86, 109,053.48 and 48,779.44

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Solution

The fourth proportional to 79,046.86, 109,053.48 and 48,779.44 is: 67,296.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,046.86 : 109,053.48 = 48,779.44 : x
  2. Step 2: Convert to fraction form
    79,046.86/109,053.48 = 48,779.44/x
  3. Step 3: Cross multiply
    79,046.86x = 109,053.48 × 48,779.44
  4. Step 4: Simplify right side
    79,046.86x = 5,319,567,684.45
  5. Step 5: Solve for x
    x = 5,319,567,684.45/79,046.86
  6. Step 6: Final answer
    x = 67,296.38

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Why These Related Problems?

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