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Finding the Fourth Proportional to 333,063.36, 499,601.21 and 108,423

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Solution

The fourth proportional to 333,063.36, 499,601.21 and 108,423 is: 162,636.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,063.36 : 499,601.21 = 108,423 : x
  2. Step 2: Convert to fraction form
    333,063.36/499,601.21 = 108,423/x
  3. Step 3: Cross multiply
    333,063.36x = 499,601.21 × 108,423
  4. Step 4: Simplify right side
    333,063.36x = 54,168,261,449.72
  5. Step 5: Solve for x
    x = 54,168,261,449.72/333,063.36
  6. Step 6: Final answer
    x = 162,636.51

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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.