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Finding the Fourth Proportional to 329,043.05, 493,562.29 and 92,385.96

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Solution

The fourth proportional to 329,043.05, 493,562.29 and 92,385.96 is: 138,578.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,043.05 : 493,562.29 = 92,385.96 : x
  2. Step 2: Convert to fraction form
    329,043.05/493,562.29 = 92,385.96/x
  3. Step 3: Cross multiply
    329,043.05x = 493,562.29 × 92,385.96
  4. Step 4: Simplify right side
    329,043.05x = 45,598,225,981.45
  5. Step 5: Solve for x
    x = 45,598,225,981.45/329,043.05
  6. Step 6: Final answer
    x = 138,578.30

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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.