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Finding the Fourth Proportional to 79,213.32, 109,317.42 and 43,404.84

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Solution

The fourth proportional to 79,213.32, 109,317.42 and 43,404.84 is: 59,900.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,213.32 : 109,317.42 = 43,404.84 : x
  2. Step 2: Convert to fraction form
    79,213.32/109,317.42 = 43,404.84/x
  3. Step 3: Cross multiply
    79,213.32x = 109,317.42 × 43,404.84
  4. Step 4: Simplify right side
    79,213.32x = 4,744,905,124.31
  5. Step 5: Solve for x
    x = 4,744,905,124.31/79,213.32
  6. Step 6: Final answer
    x = 59,900.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.