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Finding the Fourth Proportional to 121,306.90, 181,981.96 and 41,340.44

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Solution

The fourth proportional to 121,306.90, 181,981.96 and 41,340.44 is: 62,018.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,306.90 : 181,981.96 = 41,340.44 : x
  2. Step 2: Convert to fraction form
    121,306.90/181,981.96 = 41,340.44/x
  3. Step 3: Cross multiply
    121,306.90x = 181,981.96 × 41,340.44
  4. Step 4: Simplify right side
    121,306.90x = 7,523,213,181.85
  5. Step 5: Solve for x
    x = 7,523,213,181.85/121,306.90
  6. Step 6: Final answer
    x = 62,018.02

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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.