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Finding the Fourth Proportional to 303,491.73, 418,816.54 and 165,670.10

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Solution

The fourth proportional to 303,491.73, 418,816.54 and 165,670.10 is: 228,623.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,491.73 : 418,816.54 = 165,670.10 : x
  2. Step 2: Convert to fraction form
    303,491.73/418,816.54 = 165,670.10/x
  3. Step 3: Cross multiply
    303,491.73x = 418,816.54 × 165,670.10
  4. Step 4: Simplify right side
    303,491.73x = 69,385,378,063.45
  5. Step 5: Solve for x
    x = 69,385,378,063.45/303,491.73
  6. Step 6: Final answer
    x = 228,623.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.