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Finding the Fourth Proportional to 386,779.86, 580,197.74 and 161,914.14

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Solution

The fourth proportional to 386,779.86, 580,197.74 and 161,914.14 is: 242,882.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,779.86 : 580,197.74 = 161,914.14 : x
  2. Step 2: Convert to fraction form
    386,779.86/580,197.74 = 161,914.14/x
  3. Step 3: Cross multiply
    386,779.86x = 580,197.74 × 161,914.14
  4. Step 4: Simplify right side
    386,779.86x = 93,942,217,292.47
  5. Step 5: Solve for x
    x = 93,942,217,292.47/386,779.86
  6. Step 6: Final answer
    x = 242,882.91

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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.