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Finding the Fourth Proportional to 188,147.08, 259,642.98 and 112,739.24

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Solution

The fourth proportional to 188,147.08, 259,642.98 and 112,739.24 is: 155,580.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,147.08 : 259,642.98 = 112,739.24 : x
  2. Step 2: Convert to fraction form
    188,147.08/259,642.98 = 112,739.24/x
  3. Step 3: Cross multiply
    188,147.08x = 259,642.98 × 112,739.24
  4. Step 4: Simplify right side
    188,147.08x = 29,271,952,236.54
  5. Step 5: Solve for x
    x = 29,271,952,236.54/188,147.08
  6. Step 6: Final answer
    x = 155,580.16

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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.