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Finding the Fourth Proportional to 231,556.80, 347,373.60 and 98,500.80

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Solution

The fourth proportional to 231,556.80, 347,373.60 and 98,500.80 is: 147,767.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,556.80 : 347,373.60 = 98,500.80 : x
  2. Step 2: Convert to fraction form
    231,556.80/347,373.60 = 98,500.80/x
  3. Step 3: Cross multiply
    231,556.80x = 347,373.60 × 98,500.80
  4. Step 4: Simplify right side
    231,556.80x = 34,216,577,498.88
  5. Step 5: Solve for x
    x = 34,216,577,498.88/231,556.80
  6. Step 6: Final answer
    x = 147,767.53

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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.