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Finding the Fourth Proportional to 528,020.73, 792,055.70 and 154,043.73

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Solution

The fourth proportional to 528,020.73, 792,055.70 and 154,043.73 is: 231,072.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,020.73 : 792,055.70 = 154,043.73 : x
  2. Step 2: Convert to fraction form
    528,020.73/792,055.70 = 154,043.73/x
  3. Step 3: Cross multiply
    528,020.73x = 792,055.70 × 154,043.73
  4. Step 4: Simplify right side
    528,020.73x = 122,011,213,625.54
  5. Step 5: Solve for x
    x = 122,011,213,625.54/528,020.73
  6. Step 6: Final answer
    x = 231,072.77

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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.