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Finding the Fourth Proportional to 64,779.94, 97,016.82 and 50,640.99

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Solution

The fourth proportional to 64,779.94, 97,016.82 and 50,640.99 is: 75,841.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,779.94 : 97,016.82 = 50,640.99 : x
  2. Step 2: Convert to fraction form
    64,779.94/97,016.82 = 50,640.99/x
  3. Step 3: Cross multiply
    64,779.94x = 97,016.82 × 50,640.99
  4. Step 4: Simplify right side
    64,779.94x = 4,913,027,811.45
  5. Step 5: Solve for x
    x = 4,913,027,811.45/64,779.94
  6. Step 6: Final answer
    x = 75,841.81

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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.