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Finding the Fourth Proportional to 501,655.70, 752,480.78 and 122,578.54

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Solution

The fourth proportional to 501,655.70, 752,480.78 and 122,578.54 is: 183,867.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,655.70 : 752,480.78 = 122,578.54 : x
  2. Step 2: Convert to fraction form
    501,655.70/752,480.78 = 122,578.54/x
  3. Step 3: Cross multiply
    501,655.70x = 752,480.78 × 122,578.54
  4. Step 4: Simplify right side
    501,655.70x = 92,237,992,896.37
  5. Step 5: Solve for x
    x = 92,237,992,896.37/501,655.70
  6. Step 6: Final answer
    x = 183,867.13

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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.