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Finding the Fourth Proportional to 192,553.92, 265,805.28 and 117,128.64

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Solution

The fourth proportional to 192,553.92, 265,805.28 and 117,128.64 is: 161,686.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,553.92 : 265,805.28 = 117,128.64 : x
  2. Step 2: Convert to fraction form
    192,553.92/265,805.28 = 117,128.64/x
  3. Step 3: Cross multiply
    192,553.92x = 265,805.28 × 117,128.64
  4. Step 4: Simplify right side
    192,553.92x = 31,133,410,951.22
  5. Step 5: Solve for x
    x = 31,133,410,951.22/192,553.92
  6. Step 6: Final answer
    x = 161,686.72

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1.5x scale

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.