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Finding the Fourth Proportional to 251,186.80, 376,545.96 and 84,858.48

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Solution

The fourth proportional to 251,186.80, 376,545.96 and 84,858.48 is: 127,208.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,186.80 : 376,545.96 = 84,858.48 : x
  2. Step 2: Convert to fraction form
    251,186.80/376,545.96 = 84,858.48/x
  3. Step 3: Cross multiply
    251,186.80x = 376,545.96 × 84,858.48
  4. Step 4: Simplify right side
    251,186.80x = 31,953,117,815.74
  5. Step 5: Solve for x
    x = 31,953,117,815.74/251,186.80
  6. Step 6: Final answer
    x = 127,208.59

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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.