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Finding the Fourth Proportional to 165,615.12, 248,237.91 and 65,748.60

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Solution

The fourth proportional to 165,615.12, 248,237.91 and 65,748.60 is: 98,549.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,615.12 : 248,237.91 = 65,748.60 : x
  2. Step 2: Convert to fraction form
    165,615.12/248,237.91 = 65,748.60/x
  3. Step 3: Cross multiply
    165,615.12x = 248,237.91 × 65,748.60
  4. Step 4: Simplify right side
    165,615.12x = 16,321,295,049.43
  5. Step 5: Solve for x
    x = 16,321,295,049.43/165,615.12
  6. Step 6: Final answer
    x = 98,549.55

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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.