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Finding the Fourth Proportional to 534,911.10, 802,403.10 and 170,143.80

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Solution

The fourth proportional to 534,911.10, 802,403.10 and 170,143.80 is: 255,227.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,911.10 : 802,403.10 = 170,143.80 : x
  2. Step 2: Convert to fraction form
    534,911.10/802,403.10 = 170,143.80/x
  3. Step 3: Cross multiply
    534,911.10x = 802,403.10 × 170,143.80
  4. Step 4: Simplify right side
    534,911.10x = 136,523,912,565.78
  5. Step 5: Solve for x
    x = 136,523,912,565.78/534,911.10
  6. Step 6: Final answer
    x = 255,227.29

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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.