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Finding the Fourth Proportional to 445,910.46, 668,863.85 and 161,534.42

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Solution

The fourth proportional to 445,910.46, 668,863.85 and 161,534.42 is: 242,300.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,910.46 : 668,863.85 = 161,534.42 : x
  2. Step 2: Convert to fraction form
    445,910.46/668,863.85 = 161,534.42/x
  3. Step 3: Cross multiply
    445,910.46x = 668,863.85 × 161,534.42
  4. Step 4: Simplify right side
    445,910.46x = 108,044,534,068.72
  5. Step 5: Solve for x
    x = 108,044,534,068.72/445,910.46
  6. Step 6: Final answer
    x = 242,300.96

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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.