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Finding the Fourth Proportional to 235,449.08, 324,923.81 and 128,019.84

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Solution

The fourth proportional to 235,449.08, 324,923.81 and 128,019.84 is: 176,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,449.08 : 324,923.81 = 128,019.84 : x
  2. Step 2: Convert to fraction form
    235,449.08/324,923.81 = 128,019.84/x
  3. Step 3: Cross multiply
    235,449.08x = 324,923.81 × 128,019.84
  4. Step 4: Simplify right side
    235,449.08x = 41,596,694,137.52
  5. Step 5: Solve for x
    x = 41,596,694,137.52/235,449.08
  6. Step 6: Final answer
    x = 176,669.60

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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.