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Finding the Fourth Proportional to 528,641.14, 792,954.83 and 129,285.37

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Solution

The fourth proportional to 528,641.14, 792,954.83 and 129,285.37 is: 193,926.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,641.14 : 792,954.83 = 129,285.37 : x
  2. Step 2: Convert to fraction form
    528,641.14/792,954.83 = 129,285.37/x
  3. Step 3: Cross multiply
    528,641.14x = 792,954.83 × 129,285.37
  4. Step 4: Simplify right side
    528,641.14x = 102,517,458,589.84
  5. Step 5: Solve for x
    x = 102,517,458,589.84/528,641.14
  6. Step 6: Final answer
    x = 193,926.37

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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.