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Finding the Fourth Proportional to 188,111.96, 259,597.68 and 103,236.92

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Solution

The fourth proportional to 188,111.96, 259,597.68 and 103,236.92 is: 142,468.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,111.96 : 259,597.68 = 103,236.92 : x
  2. Step 2: Convert to fraction form
    188,111.96/259,597.68 = 103,236.92/x
  3. Step 3: Cross multiply
    188,111.96x = 259,597.68 × 103,236.92
  4. Step 4: Simplify right side
    188,111.96x = 26,800,064,922.35
  5. Step 5: Solve for x
    x = 26,800,064,922.35/188,111.96
  6. Step 6: Final answer
    x = 142,468.69

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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.