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Finding the Fourth Proportional to 500,391.67, 750,665.22 and 168,045.43

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Solution

The fourth proportional to 500,391.67, 750,665.22 and 168,045.43 is: 252,094.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,391.67 : 750,665.22 = 168,045.43 : x
  2. Step 2: Convert to fraction form
    500,391.67/750,665.22 = 168,045.43/x
  3. Step 3: Cross multiply
    500,391.67x = 750,665.22 × 168,045.43
  4. Step 4: Simplify right side
    500,391.67x = 126,145,859,680.95
  5. Step 5: Solve for x
    x = 126,145,859,680.95/500,391.67
  6. Step 6: Final answer
    x = 252,094.24

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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.