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Finding the Fourth Proportional to 72,467.26, 100,005.84 and 43,782.93

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Solution

The fourth proportional to 72,467.26, 100,005.84 and 43,782.93 is: 60,421.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,467.26 : 100,005.84 = 43,782.93 : x
  2. Step 2: Convert to fraction form
    72,467.26/100,005.84 = 43,782.93/x
  3. Step 3: Cross multiply
    72,467.26x = 100,005.84 × 43,782.93
  4. Step 4: Simplify right side
    72,467.26x = 4,378,548,692.31
  5. Step 5: Solve for x
    x = 4,378,548,692.31/72,467.26
  6. Step 6: Final answer
    x = 60,421.06

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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.