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Finding the Fourth Proportional to 65,197.20, 97,795.80 and 60,790.80

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Solution

The fourth proportional to 65,197.20, 97,795.80 and 60,790.80 is: 91,186.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,197.20 : 97,795.80 = 60,790.80 : x
  2. Step 2: Convert to fraction form
    65,197.20/97,795.80 = 60,790.80/x
  3. Step 3: Cross multiply
    65,197.20x = 97,795.80 × 60,790.80
  4. Step 4: Simplify right side
    65,197.20x = 5,945,084,918.64
  5. Step 5: Solve for x
    x = 5,945,084,918.64/65,197.20
  6. Step 6: Final answer
    x = 91,186.20

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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.