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Finding the Fourth Proportional to 57,514.60, 86,220.70 and 51,293.80

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Solution

The fourth proportional to 57,514.60, 86,220.70 and 51,293.80 is: 76,895.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,514.60 : 86,220.70 = 51,293.80 : x
  2. Step 2: Convert to fraction form
    57,514.60/86,220.70 = 51,293.80/x
  3. Step 3: Cross multiply
    57,514.60x = 86,220.70 × 51,293.80
  4. Step 4: Simplify right side
    57,514.60x = 4,422,587,341.66
  5. Step 5: Solve for x
    x = 4,422,587,341.66/57,514.60
  6. Step 6: Final answer
    x = 76,895.04

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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.