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Finding the Fourth Proportional to 289,170.76, 399,070.92 and 181,701.04

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Solution

The fourth proportional to 289,170.76, 399,070.92 and 181,701.04 is: 250,757.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,170.76 : 399,070.92 = 181,701.04 : x
  2. Step 2: Convert to fraction form
    289,170.76/399,070.92 = 181,701.04/x
  3. Step 3: Cross multiply
    289,170.76x = 399,070.92 × 181,701.04
  4. Step 4: Simplify right side
    289,170.76x = 72,511,601,197.76
  5. Step 5: Solve for x
    x = 72,511,601,197.76/289,170.76
  6. Step 6: Final answer
    x = 250,757.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.