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Finding the Fourth Proportional to 265,875.87, 398,986.34 and 159,179.43

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Solution

The fourth proportional to 265,875.87, 398,986.34 and 159,179.43 is: 238,872.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,875.87 : 398,986.34 = 159,179.43 : x
  2. Step 2: Convert to fraction form
    265,875.87/398,986.34 = 159,179.43/x
  3. Step 3: Cross multiply
    265,875.87x = 398,986.34 × 159,179.43
  4. Step 4: Simplify right side
    265,875.87x = 63,510,419,774.67
  5. Step 5: Solve for x
    x = 63,510,419,774.67/265,875.87
  6. Step 6: Final answer
    x = 238,872.44

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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.