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Finding the Fourth Proportional to 321,937.40, 482,906.10 and 164,473.40

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Solution

The fourth proportional to 321,937.40, 482,906.10 and 164,473.40 is: 246,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,937.40 : 482,906.10 = 164,473.40 : x
  2. Step 2: Convert to fraction form
    321,937.40/482,906.10 = 164,473.40/x
  3. Step 3: Cross multiply
    321,937.40x = 482,906.10 × 164,473.40
  4. Step 4: Simplify right side
    321,937.40x = 79,425,208,147.74
  5. Step 5: Solve for x
    x = 79,425,208,147.74/321,937.40
  6. Step 6: Final answer
    x = 246,710.10

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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.