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Finding the Fourth Proportional to 71,238.60, 98,300.70 and 41,033.75

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Solution

The fourth proportional to 71,238.60, 98,300.70 and 41,033.75 is: 56,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,238.60 : 98,300.70 = 41,033.75 : x
  2. Step 2: Convert to fraction form
    71,238.60/98,300.70 = 41,033.75/x
  3. Step 3: Cross multiply
    71,238.60x = 98,300.70 × 41,033.75
  4. Step 4: Simplify right side
    71,238.60x = 4,033,646,348.63
  5. Step 5: Solve for x
    x = 4,033,646,348.63/71,238.60
  6. Step 6: Final answer
    x = 56,621.64

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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.