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Finding the Fourth Proportional to 180,171.87, 248,640.21 and 104,720.37

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Solution

The fourth proportional to 180,171.87, 248,640.21 and 104,720.37 is: 144,515.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,171.87 : 248,640.21 = 104,720.37 : x
  2. Step 2: Convert to fraction form
    180,171.87/248,640.21 = 104,720.37/x
  3. Step 3: Cross multiply
    180,171.87x = 248,640.21 × 104,720.37
  4. Step 4: Simplify right side
    180,171.87x = 26,037,694,788.08
  5. Step 5: Solve for x
    x = 26,037,694,788.08/180,171.87
  6. Step 6: Final answer
    x = 144,515.87

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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.