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Finding the Fourth Proportional to 170,451.11, 255,676.53 and 45,792.11

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Solution

The fourth proportional to 170,451.11, 255,676.53 and 45,792.11 is: 68,688.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,451.11 : 255,676.53 = 45,792.11 : x
  2. Step 2: Convert to fraction form
    170,451.11/255,676.53 = 45,792.11/x
  3. Step 3: Cross multiply
    170,451.11x = 255,676.53 × 45,792.11
  4. Step 4: Simplify right side
    170,451.11x = 11,707,967,786.18
  5. Step 5: Solve for x
    x = 11,707,967,786.18/170,451.11
  6. Step 6: Final answer
    x = 68,688.13

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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.