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Finding the Fourth Proportional to 161,553.94, 242,431.96 and 61,722.66

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Solution

The fourth proportional to 161,553.94, 242,431.96 and 61,722.66 is: 92,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,553.94 : 242,431.96 = 61,722.66 : x
  2. Step 2: Convert to fraction form
    161,553.94/242,431.96 = 61,722.66/x
  3. Step 3: Cross multiply
    161,553.94x = 242,431.96 × 61,722.66
  4. Step 4: Simplify right side
    161,553.94x = 14,963,545,440.21
  5. Step 5: Solve for x
    x = 14,963,545,440.21/161,553.94
  6. Step 6: Final answer
    x = 92,622.60

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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.