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Finding the Fourth Proportional to 382,294.43, 573,083.51 and 129,397.95

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Solution

The fourth proportional to 382,294.43, 573,083.51 and 129,397.95 is: 193,975.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,294.43 : 573,083.51 = 129,397.95 : x
  2. Step 2: Convert to fraction form
    382,294.43/573,083.51 = 129,397.95/x
  3. Step 3: Cross multiply
    382,294.43x = 573,083.51 × 129,397.95
  4. Step 4: Simplify right side
    382,294.43x = 74,155,831,372.80
  5. Step 5: Solve for x
    x = 74,155,831,372.80/382,294.43
  6. Step 6: Final answer
    x = 193,975.70

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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.