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Finding the Fourth Proportional to 528,593.92, 792,883.78 and 129,238.14

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Solution

The fourth proportional to 528,593.92, 792,883.78 and 129,238.14 is: 193,855.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,593.92 : 792,883.78 = 129,238.14 : x
  2. Step 2: Convert to fraction form
    528,593.92/792,883.78 = 129,238.14/x
  3. Step 3: Cross multiply
    528,593.92x = 792,883.78 × 129,238.14
  4. Step 4: Simplify right side
    528,593.92x = 102,470,824,963.37
  5. Step 5: Solve for x
    x = 102,470,824,963.37/528,593.92
  6. Step 6: Final answer
    x = 193,855.47

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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.