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Finding the Fourth Proportional to 225,599.14, 311,326.80 and 134,958.91

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Solution

The fourth proportional to 225,599.14, 311,326.80 and 134,958.91 is: 186,243.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,599.14 : 311,326.80 = 134,958.91 : x
  2. Step 2: Convert to fraction form
    225,599.14/311,326.80 = 134,958.91/x
  3. Step 3: Cross multiply
    225,599.14x = 311,326.80 × 134,958.91
  4. Step 4: Simplify right side
    225,599.14x = 42,016,325,581.79
  5. Step 5: Solve for x
    x = 42,016,325,581.79/225,599.14
  6. Step 6: Final answer
    x = 186,243.29

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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.