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Finding the Fourth Proportional to 275,393.03, 380,165.66 and 168,005.85

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Solution

The fourth proportional to 275,393.03, 380,165.66 and 168,005.85 is: 231,923.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,393.03 : 380,165.66 = 168,005.85 : x
  2. Step 2: Convert to fraction form
    275,393.03/380,165.66 = 168,005.85/x
  3. Step 3: Cross multiply
    275,393.03x = 380,165.66 × 168,005.85
  4. Step 4: Simplify right side
    275,393.03x = 63,870,054,009.08
  5. Step 5: Solve for x
    x = 63,870,054,009.08/275,393.03
  6. Step 6: Final answer
    x = 231,923.28

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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.