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Finding the Fourth Proportional to 188,254.55, 259,790.73 and 112,803.05

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Solution

The fourth proportional to 188,254.55, 259,790.73 and 112,803.05 is: 155,667.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,254.55 : 259,790.73 = 112,803.05 : x
  2. Step 2: Convert to fraction form
    188,254.55/259,790.73 = 112,803.05/x
  3. Step 3: Cross multiply
    188,254.55x = 259,790.73 × 112,803.05
  4. Step 4: Simplify right side
    188,254.55x = 29,305,186,705.73
  5. Step 5: Solve for x
    x = 29,305,186,705.73/188,254.55
  6. Step 6: Final answer
    x = 155,667.88

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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.