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Finding the Fourth Proportional to 322,406.60, 482,953.80 and 164,723.90

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Solution

The fourth proportional to 322,406.60, 482,953.80 and 164,723.90 is: 246,750.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,406.60 : 482,953.80 = 164,723.90 : x
  2. Step 2: Convert to fraction form
    322,406.60/482,953.80 = 164,723.90/x
  3. Step 3: Cross multiply
    322,406.60x = 482,953.80 × 164,723.90
  4. Step 4: Simplify right side
    322,406.60x = 79,554,033,455.82
  5. Step 5: Solve for x
    x = 79,554,033,455.82/322,406.60
  6. Step 6: Final answer
    x = 246,750.64

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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.