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Finding the Fourth Proportional to 188,146.08, 259,641.60 and 112,738.24

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Solution

The fourth proportional to 188,146.08, 259,641.60 and 112,738.24 is: 155,578.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,146.08 : 259,641.60 = 112,738.24 : x
  2. Step 2: Convert to fraction form
    188,146.08/259,641.60 = 112,738.24/x
  3. Step 3: Cross multiply
    188,146.08x = 259,641.60 × 112,738.24
  4. Step 4: Simplify right side
    188,146.08x = 29,271,537,014.78
  5. Step 5: Solve for x
    x = 29,271,537,014.78/188,146.08
  6. Step 6: Final answer
    x = 155,578.78

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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.