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Finding the Fourth Proportional to 457,092.50, 685,640.37 and 124,668.50

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Solution

The fourth proportional to 457,092.50, 685,640.37 and 124,668.50 is: 187,003.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,092.50 : 685,640.37 = 124,668.50 : x
  2. Step 2: Convert to fraction form
    457,092.50/685,640.37 = 124,668.50/x
  3. Step 3: Cross multiply
    457,092.50x = 685,640.37 × 124,668.50
  4. Step 4: Simplify right side
    457,092.50x = 85,477,756,467.35
  5. Step 5: Solve for x
    x = 85,477,756,467.35/457,092.50
  6. Step 6: Final answer
    x = 187,003.19

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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.