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Finding the Fourth Proportional to 382,044.35, 573,033.51 and 129,319.43

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Solution

The fourth proportional to 382,044.35, 573,033.51 and 129,319.43 is: 193,967.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,044.35 : 573,033.51 = 129,319.43 : x
  2. Step 2: Convert to fraction form
    382,044.35/573,033.51 = 129,319.43/x
  3. Step 3: Cross multiply
    382,044.35x = 573,033.51 × 129,319.43
  4. Step 4: Simplify right side
    382,044.35x = 74,104,364,018.93
  5. Step 5: Solve for x
    x = 74,104,364,018.93/382,044.35
  6. Step 6: Final answer
    x = 193,967.96

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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.