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Finding the Fourth Proportional to 304,834.83, 420,671.99 and 168,877.61

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Solution

The fourth proportional to 304,834.83, 420,671.99 and 168,877.61 is: 233,051.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,834.83 : 420,671.99 = 168,877.61 : x
  2. Step 2: Convert to fraction form
    304,834.83/420,671.99 = 168,877.61/x
  3. Step 3: Cross multiply
    304,834.83x = 420,671.99 × 168,877.61
  4. Step 4: Simplify right side
    304,834.83x = 71,042,078,161.78
  5. Step 5: Solve for x
    x = 71,042,078,161.78/304,834.83
  6. Step 6: Final answer
    x = 233,051.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.