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Finding the Fourth Proportional to 365,260, 547,890.20 and 115,942

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Solution

The fourth proportional to 365,260, 547,890.20 and 115,942 is: 173,913.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,260 : 547,890.20 = 115,942 : x
  2. Step 2: Convert to fraction form
    365,260/547,890.20 = 115,942/x
  3. Step 3: Cross multiply
    365,260x = 547,890.20 × 115,942
  4. Step 4: Simplify right side
    365,260x = 63,523,485,568.40
  5. Step 5: Solve for x
    x = 63,523,485,568.40/365,260
  6. Step 6: Final answer
    x = 173,913.06

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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.