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Finding the Fourth Proportional to 235,903.73, 325,544.88 and 128,475.56

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Solution

The fourth proportional to 235,903.73, 325,544.88 and 128,475.56 is: 177,295.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,903.73 : 325,544.88 = 128,475.56 : x
  2. Step 2: Convert to fraction form
    235,903.73/325,544.88 = 128,475.56/x
  3. Step 3: Cross multiply
    235,903.73x = 325,544.88 × 128,475.56
  4. Step 4: Simplify right side
    235,903.73x = 41,824,558,493.03
  5. Step 5: Solve for x
    x = 41,824,558,493.03/235,903.73
  6. Step 6: Final answer
    x = 177,295.03

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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.