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Finding the Fourth Proportional to 295,653.18, 443,431.17 and 85,234.62

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Solution

The fourth proportional to 295,653.18, 443,431.17 and 85,234.62 is: 127,837.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,653.18 : 443,431.17 = 85,234.62 : x
  2. Step 2: Convert to fraction form
    295,653.18/443,431.17 = 85,234.62/x
  3. Step 3: Cross multiply
    295,653.18x = 443,431.17 × 85,234.62
  4. Step 4: Simplify right side
    295,653.18x = 37,795,687,271.11
  5. Step 5: Solve for x
    x = 37,795,687,271.11/295,653.18
  6. Step 6: Final answer
    x = 127,837.92

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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.