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Finding the Fourth Proportional to 235,846.60, 325,468.69 and 128,417.07

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Solution

The fourth proportional to 235,846.60, 325,468.69 and 128,417.07 is: 177,215.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,846.60 : 325,468.69 = 128,417.07 : x
  2. Step 2: Convert to fraction form
    235,846.60/325,468.69 = 128,417.07/x
  3. Step 3: Cross multiply
    235,846.60x = 325,468.69 × 128,417.07
  4. Step 4: Simplify right side
    235,846.60x = 41,795,735,546.54
  5. Step 5: Solve for x
    x = 41,795,735,546.54/235,846.60
  6. Step 6: Final answer
    x = 177,215.76

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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.