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Finding the Fourth Proportional to 124,978.54, 187,511.55 and 36,237.37

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Solution

The fourth proportional to 124,978.54, 187,511.55 and 36,237.37 is: 54,368.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,978.54 : 187,511.55 = 36,237.37 : x
  2. Step 2: Convert to fraction form
    124,978.54/187,511.55 = 36,237.37/x
  3. Step 3: Cross multiply
    124,978.54x = 187,511.55 × 36,237.37
  4. Step 4: Simplify right side
    124,978.54x = 6,794,924,947.84
  5. Step 5: Solve for x
    x = 6,794,924,947.84/124,978.54
  6. Step 6: Final answer
    x = 54,368.73

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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.