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Finding the Fourth Proportional to 294,551.91, 441,819.05 and 81,332.87

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Solution

The fourth proportional to 294,551.91, 441,819.05 and 81,332.87 is: 121,996.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,551.91 : 441,819.05 = 81,332.87 : x
  2. Step 2: Convert to fraction form
    294,551.91/441,819.05 = 81,332.87/x
  3. Step 3: Cross multiply
    294,551.91x = 441,819.05 × 81,332.87
  4. Step 4: Simplify right side
    294,551.91x = 35,934,408,741.41
  5. Step 5: Solve for x
    x = 35,934,408,741.41/294,551.91
  6. Step 6: Final answer
    x = 121,996.86

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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.