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Finding the Fourth Proportional to 322,889.36, 484,323.17 and 173,421.57

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Solution

The fourth proportional to 322,889.36, 484,323.17 and 173,421.57 is: 260,126.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,889.36 : 484,323.17 = 173,421.57 : x
  2. Step 2: Convert to fraction form
    322,889.36/484,323.17 = 173,421.57/x
  3. Step 3: Cross multiply
    322,889.36x = 484,323.17 × 173,421.57
  4. Step 4: Simplify right side
    322,889.36x = 83,992,085,477.88
  5. Step 5: Solve for x
    x = 83,992,085,477.88/322,889.36
  6. Step 6: Final answer
    x = 260,126.52

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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.