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Finding the Fourth Proportional to 125,619.51, 188,388.78 and 41,359.62

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Solution

The fourth proportional to 125,619.51, 188,388.78 and 41,359.62 is: 62,026.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,619.51 : 188,388.78 = 41,359.62 : x
  2. Step 2: Convert to fraction form
    125,619.51/188,388.78 = 41,359.62/x
  3. Step 3: Cross multiply
    125,619.51x = 188,388.78 × 41,359.62
  4. Step 4: Simplify right side
    125,619.51x = 7,791,687,491.51
  5. Step 5: Solve for x
    x = 7,791,687,491.51/125,619.51
  6. Step 6: Final answer
    x = 62,026.09

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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.