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Finding the Fourth Proportional to 313,864.40, 470,796.60 and 166,408.40

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Solution

The fourth proportional to 313,864.40, 470,796.60 and 166,408.40 is: 249,612.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,864.40 : 470,796.60 = 166,408.40 : x
  2. Step 2: Convert to fraction form
    313,864.40/470,796.60 = 166,408.40/x
  3. Step 3: Cross multiply
    313,864.40x = 470,796.60 × 166,408.40
  4. Step 4: Simplify right side
    313,864.40x = 78,344,508,931.44
  5. Step 5: Solve for x
    x = 78,344,508,931.44/313,864.40
  6. Step 6: Final answer
    x = 249,612.60

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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.