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Finding the Fourth Proportional to 451,108.28, 676,813.48 and 147,516.44

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Solution

The fourth proportional to 451,108.28, 676,813.48 and 147,516.44 is: 221,324.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,108.28 : 676,813.48 = 147,516.44 : x
  2. Step 2: Convert to fraction form
    451,108.28/676,813.48 = 147,516.44/x
  3. Step 3: Cross multiply
    451,108.28x = 676,813.48 × 147,516.44
  4. Step 4: Simplify right side
    451,108.28x = 99,841,111,360.75
  5. Step 5: Solve for x
    x = 99,841,111,360.75/451,108.28
  6. Step 6: Final answer
    x = 221,324.05

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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.