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Finding the Fourth Proportional to 79,250.63, 109,364.14 and 43,439.87

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Solution

The fourth proportional to 79,250.63, 109,364.14 and 43,439.87 is: 59,946.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,250.63 : 109,364.14 = 43,439.87 : x
  2. Step 2: Convert to fraction form
    79,250.63/109,364.14 = 43,439.87/x
  3. Step 3: Cross multiply
    79,250.63x = 109,364.14 × 43,439.87
  4. Step 4: Simplify right side
    79,250.63x = 4,750,764,024.26
  5. Step 5: Solve for x
    x = 4,750,764,024.26/79,250.63
  6. Step 6: Final answer
    x = 59,946.07

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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.