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Finding the Fourth Proportional to 265,900.38, 398,406.48 and 186,873.13

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Solution

The fourth proportional to 265,900.38, 398,406.48 and 186,873.13 is: 279,997.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,900.38 : 398,406.48 = 186,873.13 : x
  2. Step 2: Convert to fraction form
    265,900.38/398,406.48 = 186,873.13/x
  3. Step 3: Cross multiply
    265,900.38x = 398,406.48 × 186,873.13
  4. Step 4: Simplify right side
    265,900.38x = 74,451,465,929.88
  5. Step 5: Solve for x
    x = 74,451,465,929.88/265,900.38
  6. Step 6: Final answer
    x = 279,997.59

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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.