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Finding the Fourth Proportional to 261,662.76, 361,000.10 and 148,419.88

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Solution

The fourth proportional to 261,662.76, 361,000.10 and 148,419.88 is: 204,765.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,662.76 : 361,000.10 = 148,419.88 : x
  2. Step 2: Convert to fraction form
    261,662.76/361,000.10 = 148,419.88/x
  3. Step 3: Cross multiply
    261,662.76x = 361,000.10 × 148,419.88
  4. Step 4: Simplify right side
    261,662.76x = 53,579,591,521.99
  5. Step 5: Solve for x
    x = 53,579,591,521.99/261,662.76
  6. Step 6: Final answer
    x = 204,765.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.