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Finding the Fourth Proportional to 296,966.60, 445,253.10 and 163,910.60

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Solution

The fourth proportional to 296,966.60, 445,253.10 and 163,910.60 is: 245,757.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,966.60 : 445,253.10 = 163,910.60 : x
  2. Step 2: Convert to fraction form
    296,966.60/445,253.10 = 163,910.60/x
  3. Step 3: Cross multiply
    296,966.60x = 445,253.10 × 163,910.60
  4. Step 4: Simplify right side
    296,966.60x = 72,981,702,772.86
  5. Step 5: Solve for x
    x = 72,981,702,772.86/296,966.60
  6. Step 6: Final answer
    x = 245,757.28

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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.