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Finding the Fourth Proportional to 85,452.88, 117,758.44 and 61,534.39

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Solution

The fourth proportional to 85,452.88, 117,758.44 and 61,534.39 is: 84,797.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,452.88 : 117,758.44 = 61,534.39 : x
  2. Step 2: Convert to fraction form
    85,452.88/117,758.44 = 61,534.39/x
  3. Step 3: Cross multiply
    85,452.88x = 117,758.44 × 61,534.39
  4. Step 4: Simplify right side
    85,452.88x = 7,246,193,772.75
  5. Step 5: Solve for x
    x = 7,246,193,772.75/85,452.88
  6. Step 6: Final answer
    x = 84,797.54

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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.