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Finding the Fourth Proportional to 305,551.94, 421,666.17 and 169,594.61

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Solution

The fourth proportional to 305,551.94, 421,666.17 and 169,594.61 is: 234,043.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,551.94 : 421,666.17 = 169,594.61 : x
  2. Step 2: Convert to fraction form
    305,551.94/421,666.17 = 169,594.61/x
  3. Step 3: Cross multiply
    305,551.94x = 421,666.17 × 169,594.61
  4. Step 4: Simplify right side
    305,551.94x = 71,512,309,651.34
  5. Step 5: Solve for x
    x = 71,512,309,651.34/305,551.94
  6. Step 6: Final answer
    x = 234,043.06

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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.