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Finding the Fourth Proportional to 321,334.05, 482,042.54 and 108,009.97

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Solution

The fourth proportional to 321,334.05, 482,042.54 and 108,009.97 is: 162,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,334.05 : 482,042.54 = 108,009.97 : x
  2. Step 2: Convert to fraction form
    321,334.05/482,042.54 = 108,009.97/x
  3. Step 3: Cross multiply
    321,334.05x = 482,042.54 × 108,009.97
  4. Step 4: Simplify right side
    321,334.05x = 52,065,402,060.53
  5. Step 5: Solve for x
    x = 52,065,402,060.53/321,334.05
  6. Step 6: Final answer
    x = 162,028.90

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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.