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Finding the Fourth Proportional to 161,763.10, 242,644.65 and 82,851.10

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Solution

The fourth proportional to 161,763.10, 242,644.65 and 82,851.10 is: 124,276.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,763.10 : 242,644.65 = 82,851.10 : x
  2. Step 2: Convert to fraction form
    161,763.10/242,644.65 = 82,851.10/x
  3. Step 3: Cross multiply
    161,763.10x = 242,644.65 × 82,851.10
  4. Step 4: Simplify right side
    161,763.10x = 20,103,376,161.62
  5. Step 5: Solve for x
    x = 20,103,376,161.62/161,763.10
  6. Step 6: Final answer
    x = 124,276.65

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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.