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Finding the Fourth Proportional to 510,479.82, 765,834.96 and 168,922.38

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Solution

The fourth proportional to 510,479.82, 765,834.96 and 168,922.38 is: 253,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,479.82 : 765,834.96 = 168,922.38 : x
  2. Step 2: Convert to fraction form
    510,479.82/765,834.96 = 168,922.38/x
  3. Step 3: Cross multiply
    510,479.82x = 765,834.96 × 168,922.38
  4. Step 4: Simplify right side
    510,479.82x = 129,366,664,130.41
  5. Step 5: Solve for x
    x = 129,366,664,130.41/510,479.82
  6. Step 6: Final answer
    x = 253,421.70

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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.