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Finding the Fourth Proportional to 235,377.32, 324,835.79 and 132,021.21

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Solution

The fourth proportional to 235,377.32, 324,835.79 and 132,021.21 is: 182,197.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,377.32 : 324,835.79 = 132,021.21 : x
  2. Step 2: Convert to fraction form
    235,377.32/324,835.79 = 132,021.21/x
  3. Step 3: Cross multiply
    235,377.32x = 324,835.79 × 132,021.21
  4. Step 4: Simplify right side
    235,377.32x = 42,885,214,605.13
  5. Step 5: Solve for x
    x = 42,885,214,605.13/235,377.32
  6. Step 6: Final answer
    x = 182,197.74

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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.