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Finding the Fourth Proportional to 170,625.64, 255,987.65 and 52,314.43

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Solution

The fourth proportional to 170,625.64, 255,987.65 and 52,314.43 is: 78,486.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,625.64 : 255,987.65 = 52,314.43 : x
  2. Step 2: Convert to fraction form
    170,625.64/255,987.65 = 52,314.43/x
  3. Step 3: Cross multiply
    170,625.64x = 255,987.65 × 52,314.43
  4. Step 4: Simplify right side
    170,625.64x = 13,391,847,996.79
  5. Step 5: Solve for x
    x = 13,391,847,996.79/170,625.64
  6. Step 6: Final answer
    x = 78,486.73

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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.