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Finding the Fourth Proportional to 57,755.68, 86,668.08 and 53,055.52

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Solution

The fourth proportional to 57,755.68, 86,668.08 and 53,055.52 is: 79,615.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,755.68 : 86,668.08 = 53,055.52 : x
  2. Step 2: Convert to fraction form
    57,755.68/86,668.08 = 53,055.52/x
  3. Step 3: Cross multiply
    57,755.68x = 86,668.08 × 53,055.52
  4. Step 4: Simplify right side
    57,755.68x = 4,598,220,051.80
  5. Step 5: Solve for x
    x = 4,598,220,051.80/57,755.68
  6. Step 6: Final answer
    x = 79,615.03

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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.