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Finding the Fourth Proportional to 521,940.15, 782,898.89 and 166,953.11

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Solution

The fourth proportional to 521,940.15, 782,898.89 and 166,953.11 is: 250,426.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,940.15 : 782,898.89 = 166,953.11 : x
  2. Step 2: Convert to fraction form
    521,940.15/782,898.89 = 166,953.11/x
  3. Step 3: Cross multiply
    521,940.15x = 782,898.89 × 166,953.11
  4. Step 4: Simplify right side
    521,940.15x = 130,707,399,751.79
  5. Step 5: Solve for x
    x = 130,707,399,751.79/521,940.15
  6. Step 6: Final answer
    x = 250,426.03

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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.