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Finding the Fourth Proportional to 79,657.35, 109,927.20 and 43,847.96

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Solution

The fourth proportional to 79,657.35, 109,927.20 and 43,847.96 is: 60,510.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,657.35 : 109,927.20 = 43,847.96 : x
  2. Step 2: Convert to fraction form
    79,657.35/109,927.20 = 43,847.96/x
  3. Step 3: Cross multiply
    79,657.35x = 109,927.20 × 43,847.96
  4. Step 4: Simplify right side
    79,657.35x = 4,820,082,699.64
  5. Step 5: Solve for x
    x = 4,820,082,699.64/79,657.35
  6. Step 6: Final answer
    x = 60,510.21

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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.