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Finding the Fourth Proportional to 235,895.81, 325,533.97 and 128,467.63

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Solution

The fourth proportional to 235,895.81, 325,533.97 and 128,467.63 is: 177,284.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,895.81 : 325,533.97 = 128,467.63 : x
  2. Step 2: Convert to fraction form
    235,895.81/325,533.97 = 128,467.63/x
  3. Step 3: Cross multiply
    235,895.81x = 325,533.97 × 128,467.63
  4. Step 4: Simplify right side
    235,895.81x = 41,820,577,610.39
  5. Step 5: Solve for x
    x = 41,820,577,610.39/235,895.81
  6. Step 6: Final answer
    x = 177,284.11

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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.