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Finding the Fourth Proportional to 451,628.66, 677,443.28 and 114,694.58

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Solution

The fourth proportional to 451,628.66, 677,443.28 and 114,694.58 is: 172,041.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,628.66 : 677,443.28 = 114,694.58 : x
  2. Step 2: Convert to fraction form
    451,628.66/677,443.28 = 114,694.58/x
  3. Step 3: Cross multiply
    451,628.66x = 677,443.28 × 114,694.58
  4. Step 4: Simplify right side
    451,628.66x = 77,699,068,512.73
  5. Step 5: Solve for x
    x = 77,699,068,512.73/451,628.66
  6. Step 6: Final answer
    x = 172,041.94

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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.