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Finding the Fourth Proportional to 124,936.64, 187,404.95 and 36,190.16

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Solution

The fourth proportional to 124,936.64, 187,404.95 and 36,190.16 is: 54,285.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,936.64 : 187,404.95 = 36,190.16 : x
  2. Step 2: Convert to fraction form
    124,936.64/187,404.95 = 36,190.16/x
  3. Step 3: Cross multiply
    124,936.64x = 187,404.95 × 36,190.16
  4. Step 4: Simplify right side
    124,936.64x = 6,782,214,007.32
  5. Step 5: Solve for x
    x = 6,782,214,007.32/124,936.64
  6. Step 6: Final answer
    x = 54,285.23

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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.