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Finding the Fourth Proportional to 172,398,947.54, 237,910,485.04 and 94,082,501.03

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Solution

The fourth proportional to 172,398,947.54, 237,910,485.04 and 94,082,501.03 is: 129,833,817.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,398,947.54 : 237,910,485.04 = 94,082,501.03 : x
  2. Step 2: Convert to fraction form
    172,398,947.54/237,910,485.04 = 94,082,501.03/x
  3. Step 3: Cross multiply
    172,398,947.54x = 237,910,485.04 × 94,082,501.03
  4. Step 4: Simplify right side
    172,398,947.54x = 22,383,213,453,718,724
  5. Step 5: Solve for x
    x = 22,383,213,453,718,724/172,398,947.54
  6. Step 6: Final answer
    x = 129,833,817.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.