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Finding the Fourth Proportional to 235,415.82, 324,880.20 and 127,993.08

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Solution

The fourth proportional to 235,415.82, 324,880.20 and 127,993.08 is: 176,633.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,415.82 : 324,880.20 = 127,993.08 : x
  2. Step 2: Convert to fraction form
    235,415.82/324,880.20 = 127,993.08/x
  3. Step 3: Cross multiply
    235,415.82x = 324,880.20 × 127,993.08
  4. Step 4: Simplify right side
    235,415.82x = 41,582,417,429.02
  5. Step 5: Solve for x
    x = 41,582,417,429.02/235,415.82
  6. Step 6: Final answer
    x = 176,633.91

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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.