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Finding the Fourth Proportional to 79,480.70, 109,683.27 and 43,670.62

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Solution

The fourth proportional to 79,480.70, 109,683.27 and 43,670.62 is: 60,265.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,480.70 : 109,683.27 = 43,670.62 : x
  2. Step 2: Convert to fraction form
    79,480.70/109,683.27 = 43,670.62/x
  3. Step 3: Cross multiply
    79,480.70x = 109,683.27 × 43,670.62
  4. Step 4: Simplify right side
    79,480.70x = 4,789,936,130.32
  5. Step 5: Solve for x
    x = 4,789,936,130.32/79,480.70
  6. Step 6: Final answer
    x = 60,265.40

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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.