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Finding the Fourth Proportional to 324,426.64, 486,653.36 and 111,341

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Solution

The fourth proportional to 324,426.64, 486,653.36 and 111,341 is: 167,016.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,426.64 : 486,653.36 = 111,341 : x
  2. Step 2: Convert to fraction form
    324,426.64/486,653.36 = 111,341/x
  3. Step 3: Cross multiply
    324,426.64x = 486,653.36 × 111,341
  4. Step 4: Simplify right side
    324,426.64x = 54,184,471,755.76
  5. Step 5: Solve for x
    x = 54,184,471,755.76/324,426.64
  6. Step 6: Final answer
    x = 167,016.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.