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Finding the Fourth Proportional to 382,051.67, 573,044.22 and 129,326.67

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Solution

The fourth proportional to 382,051.67, 573,044.22 and 129,326.67 is: 193,978.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,051.67 : 573,044.22 = 129,326.67 : x
  2. Step 2: Convert to fraction form
    382,051.67/573,044.22 = 129,326.67/x
  3. Step 3: Cross multiply
    382,051.67x = 573,044.22 × 129,326.67
  4. Step 4: Simplify right side
    382,051.67x = 74,109,900,735.35
  5. Step 5: Solve for x
    x = 74,109,900,735.35/382,051.67
  6. Step 6: Final answer
    x = 193,978.74

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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.