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Finding the Fourth Proportional to 124,978.44, 187,429.09 and 36,238.49

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Solution

The fourth proportional to 124,978.44, 187,429.09 and 36,238.49 is: 54,346.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,978.44 : 187,429.09 = 36,238.49 : x
  2. Step 2: Convert to fraction form
    124,978.44/187,429.09 = 36,238.49/x
  3. Step 3: Cross multiply
    124,978.44x = 187,429.09 × 36,238.49
  4. Step 4: Simplify right side
    124,978.44x = 6,792,146,946.74
  5. Step 5: Solve for x
    x = 6,792,146,946.74/124,978.44
  6. Step 6: Final answer
    x = 54,346.55

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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.