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Finding the Fourth Proportional to 116,478, 174,717 and 28,926

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Solution

The fourth proportional to 116,478, 174,717 and 28,926 is: 43,389

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,478 : 174,717 = 28,926 : x
  2. Step 2: Convert to fraction form
    116,478/174,717 = 28,926/x
  3. Step 3: Cross multiply
    116,478x = 174,717 × 28,926
  4. Step 4: Simplify right side
    116,478x = 5,053,863,942
  5. Step 5: Solve for x
    x = 5,053,863,942/116,478
  6. Step 6: Final answer
    x = 43,389

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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.