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Finding the Fourth Proportional to 248,802.86, 373,192.94 and 80,330.96

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Solution

The fourth proportional to 248,802.86, 373,192.94 and 80,330.96 is: 120,492.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,802.86 : 373,192.94 = 80,330.96 : x
  2. Step 2: Convert to fraction form
    248,802.86/373,192.94 = 80,330.96/x
  3. Step 3: Cross multiply
    248,802.86x = 373,192.94 × 80,330.96
  4. Step 4: Simplify right side
    248,802.86x = 29,978,947,135.42
  5. Step 5: Solve for x
    x = 29,978,947,135.42/248,802.86
  6. Step 6: Final answer
    x = 120,492.78

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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.