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Finding the Fourth Proportional to 115,662.74, 173,511.38 and 36,779.54

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Solution

The fourth proportional to 115,662.74, 173,511.38 and 36,779.54 is: 55,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,662.74 : 173,511.38 = 36,779.54 : x
  2. Step 2: Convert to fraction form
    115,662.74/173,511.38 = 36,779.54/x
  3. Step 3: Cross multiply
    115,662.74x = 173,511.38 × 36,779.54
  4. Step 4: Simplify right side
    115,662.74x = 6,381,668,741.17
  5. Step 5: Solve for x
    x = 6,381,668,741.17/115,662.74
  6. Step 6: Final answer
    x = 55,174.80

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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.