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Finding the Fourth Proportional to 71,114.44, 98,137.38 and 39,284.68

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Solution

The fourth proportional to 71,114.44, 98,137.38 and 39,284.68 is: 54,212.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,114.44 : 98,137.38 = 39,284.68 : x
  2. Step 2: Convert to fraction form
    71,114.44/98,137.38 = 39,284.68/x
  3. Step 3: Cross multiply
    71,114.44x = 98,137.38 × 39,284.68
  4. Step 4: Simplify right side
    71,114.44x = 3,855,295,569.34
  5. Step 5: Solve for x
    x = 3,855,295,569.34/71,114.44
  6. Step 6: Final answer
    x = 54,212.56

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1.5x scale

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.