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Finding the Fourth Proportional to 235,921.88, 325,568.94 and 135,317.72

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Solution

The fourth proportional to 235,921.88, 325,568.94 and 135,317.72 is: 186,736.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,921.88 : 325,568.94 = 135,317.72 : x
  2. Step 2: Convert to fraction form
    235,921.88/325,568.94 = 135,317.72/x
  3. Step 3: Cross multiply
    235,921.88x = 325,568.94 × 135,317.72
  4. Step 4: Simplify right side
    235,921.88x = 44,055,246,663.62
  5. Step 5: Solve for x
    x = 44,055,246,663.62/235,921.88
  6. Step 6: Final answer
    x = 186,736.59

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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.