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Finding the Fourth Proportional to 170,165.22, 255,275.51 and 57,855.48

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Solution

The fourth proportional to 170,165.22, 255,275.51 and 57,855.48 is: 86,792.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,165.22 : 255,275.51 = 57,855.48 : x
  2. Step 2: Convert to fraction form
    170,165.22/255,275.51 = 57,855.48/x
  3. Step 3: Cross multiply
    170,165.22x = 255,275.51 × 57,855.48
  4. Step 4: Simplify right side
    170,165.22x = 14,769,086,874.02
  5. Step 5: Solve for x
    x = 14,769,086,874.02/170,165.22
  6. Step 6: Final answer
    x = 86,792.63

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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.