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Finding the Fourth Proportional to 101,496.74, 140,078.58 and 61,232.24

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Solution

The fourth proportional to 101,496.74, 140,078.58 and 61,232.24 is: 84,508.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,496.74 : 140,078.58 = 61,232.24 : x
  2. Step 2: Convert to fraction form
    101,496.74/140,078.58 = 61,232.24/x
  3. Step 3: Cross multiply
    101,496.74x = 140,078.58 × 61,232.24
  4. Step 4: Simplify right side
    101,496.74x = 8,577,325,579.62
  5. Step 5: Solve for x
    x = 8,577,325,579.62/101,496.74
  6. Step 6: Final answer
    x = 84,508.39

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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.