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Finding the Fourth Proportional to 79,156.62, 109,238.60 and 43,350.02

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Solution

The fourth proportional to 79,156.62, 109,238.60 and 43,350.02 is: 59,824.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,156.62 : 109,238.60 = 43,350.02 : x
  2. Step 2: Convert to fraction form
    79,156.62/109,238.60 = 43,350.02/x
  3. Step 3: Cross multiply
    79,156.62x = 109,238.60 × 43,350.02
  4. Step 4: Simplify right side
    79,156.62x = 4,735,495,494.77
  5. Step 5: Solve for x
    x = 4,735,495,494.77/79,156.62
  6. Step 6: Final answer
    x = 59,824.38

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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.