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Finding the Fourth Proportional to 342,863.55, 473,153.04 and 199,721.97

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Solution

The fourth proportional to 342,863.55, 473,153.04 and 199,721.97 is: 275,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,863.55 : 473,153.04 = 199,721.97 : x
  2. Step 2: Convert to fraction form
    342,863.55/473,153.04 = 199,721.97/x
  3. Step 3: Cross multiply
    342,863.55x = 473,153.04 × 199,721.97
  4. Step 4: Simplify right side
    342,863.55x = 94,499,057,260.29
  5. Step 5: Solve for x
    x = 94,499,057,260.29/342,863.55
  6. Step 6: Final answer
    x = 275,617.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.