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Finding the Fourth Proportional to 333,556.40, 499,994.40 and 164,817.20

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Solution

The fourth proportional to 333,556.40, 499,994.40 and 164,817.20 is: 247,057.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,556.40 : 499,994.40 = 164,817.20 : x
  2. Step 2: Convert to fraction form
    333,556.40/499,994.40 = 164,817.20/x
  3. Step 3: Cross multiply
    333,556.40x = 499,994.40 × 164,817.20
  4. Step 4: Simplify right side
    333,556.40x = 82,407,677,023.68
  5. Step 5: Solve for x
    x = 82,407,677,023.68/333,556.40
  6. Step 6: Final answer
    x = 247,057.70

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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.