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Finding the Fourth Proportional to 80,590.60, 111,212.81 and 44,779.69

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Solution

The fourth proportional to 80,590.60, 111,212.81 and 44,779.69 is: 61,794.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,590.60 : 111,212.81 = 44,779.69 : x
  2. Step 2: Convert to fraction form
    80,590.60/111,212.81 = 44,779.69/x
  3. Step 3: Cross multiply
    80,590.60x = 111,212.81 × 44,779.69
  4. Step 4: Simplify right side
    80,590.60x = 4,980,074,865.18
  5. Step 5: Solve for x
    x = 4,980,074,865.18/80,590.60
  6. Step 6: Final answer
    x = 61,794.74

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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.