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Finding the Fourth Proportional to 265,964.32, 398,879.52 and 132,748.48

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Solution

The fourth proportional to 265,964.32, 398,879.52 and 132,748.48 is: 199,089.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,964.32 : 398,879.52 = 132,748.48 : x
  2. Step 2: Convert to fraction form
    265,964.32/398,879.52 = 132,748.48/x
  3. Step 3: Cross multiply
    265,964.32x = 398,879.52 × 132,748.48
  4. Step 4: Simplify right side
    265,964.32x = 52,950,649,983.13
  5. Step 5: Solve for x
    x = 52,950,649,983.13/265,964.32
  6. Step 6: Final answer
    x = 199,089.30

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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.