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Finding the Fourth Proportional to 188,256.55, 259,793.49 and 112,805.05

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Solution

The fourth proportional to 188,256.55, 259,793.49 and 112,805.05 is: 155,670.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,256.55 : 259,793.49 = 112,805.05 : x
  2. Step 2: Convert to fraction form
    188,256.55/259,793.49 = 112,805.05/x
  3. Step 3: Cross multiply
    188,256.55x = 259,793.49 × 112,805.05
  4. Step 4: Simplify right side
    188,256.55x = 29,306,017,629.12
  5. Step 5: Solve for x
    x = 29,306,017,629.12/188,256.55
  6. Step 6: Final answer
    x = 155,670.64

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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.