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Finding the Fourth Proportional to 308,789.88, 426,235.14 and 181,503.24

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Solution

The fourth proportional to 308,789.88, 426,235.14 and 181,503.24 is: 250,536.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,789.88 : 426,235.14 = 181,503.24 : x
  2. Step 2: Convert to fraction form
    308,789.88/426,235.14 = 181,503.24/x
  3. Step 3: Cross multiply
    308,789.88x = 426,235.14 × 181,503.24
  4. Step 4: Simplify right side
    308,789.88x = 77,363,058,911.85
  5. Step 5: Solve for x
    x = 77,363,058,911.85/308,789.88
  6. Step 6: Final answer
    x = 250,536.25

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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.