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Finding the Fourth Proportional to 332,820.40, 498,890.40 and 164,081.20

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Solution

The fourth proportional to 332,820.40, 498,890.40 and 164,081.20 is: 245,954.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,820.40 : 498,890.40 = 164,081.20 : x
  2. Step 2: Convert to fraction form
    332,820.40/498,890.40 = 164,081.20/x
  3. Step 3: Cross multiply
    332,820.40x = 498,890.40 × 164,081.20
  4. Step 4: Simplify right side
    332,820.40x = 81,858,535,500.48
  5. Step 5: Solve for x
    x = 81,858,535,500.48/332,820.40
  6. Step 6: Final answer
    x = 245,954.08

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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.