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Finding the Fourth Proportional to 302,781.50, 417,818.41 and 181,927.88

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Solution

The fourth proportional to 302,781.50, 417,818.41 and 181,927.88 is: 251,048.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,781.50 : 417,818.41 = 181,927.88 : x
  2. Step 2: Convert to fraction form
    302,781.50/417,818.41 = 181,927.88/x
  3. Step 3: Cross multiply
    302,781.50x = 417,818.41 × 181,927.88
  4. Step 4: Simplify right side
    302,781.50x = 76,012,815,012.36
  5. Step 5: Solve for x
    x = 76,012,815,012.36/302,781.50
  6. Step 6: Final answer
    x = 251,048.42

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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.