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Finding the Fourth Proportional to 124,810.40, 187,216.40 and 49,936.80

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Solution

The fourth proportional to 124,810.40, 187,216.40 and 49,936.80 is: 74,905.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,810.40 : 187,216.40 = 49,936.80 : x
  2. Step 2: Convert to fraction form
    124,810.40/187,216.40 = 49,936.80/x
  3. Step 3: Cross multiply
    124,810.40x = 187,216.40 × 49,936.80
  4. Step 4: Simplify right side
    124,810.40x = 9,348,987,923.52
  5. Step 5: Solve for x
    x = 9,348,987,923.52/124,810.40
  6. Step 6: Final answer
    x = 74,905.52

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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.