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Finding the Fourth Proportional to 235,873.92, 325,494.90 and 128,443.62

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Solution

The fourth proportional to 235,873.92, 325,494.90 and 128,443.62 is: 177,246.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,873.92 : 325,494.90 = 128,443.62 : x
  2. Step 2: Convert to fraction form
    235,873.92/325,494.90 = 128,443.62/x
  3. Step 3: Cross multiply
    235,873.92x = 325,494.90 × 128,443.62
  4. Step 4: Simplify right side
    235,873.92x = 41,807,743,247.54
  5. Step 5: Solve for x
    x = 41,807,743,247.54/235,873.92
  6. Step 6: Final answer
    x = 177,246.15

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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.