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Finding the Fourth Proportional to 192,705.92, 266,011.44 and 127,285.28

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Solution

The fourth proportional to 192,705.92, 266,011.44 and 127,285.28 is: 175,704.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,705.92 : 266,011.44 = 127,285.28 : x
  2. Step 2: Convert to fraction form
    192,705.92/266,011.44 = 127,285.28/x
  3. Step 3: Cross multiply
    192,705.92x = 266,011.44 × 127,285.28
  4. Step 4: Simplify right side
    192,705.92x = 33,859,340,623.60
  5. Step 5: Solve for x
    x = 33,859,340,623.60/192,705.92
  6. Step 6: Final answer
    x = 175,704.72

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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.