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Finding the Fourth Proportional to 265,573.56, 398,359.26 and 107,800.68

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Solution

The fourth proportional to 265,573.56, 398,359.26 and 107,800.68 is: 161,700.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,573.56 : 398,359.26 = 107,800.68 : x
  2. Step 2: Convert to fraction form
    265,573.56/398,359.26 = 107,800.68/x
  3. Step 3: Cross multiply
    265,573.56x = 398,359.26 × 107,800.68
  4. Step 4: Simplify right side
    265,573.56x = 42,943,399,112.30
  5. Step 5: Solve for x
    x = 42,943,399,112.30/265,573.56
  6. Step 6: Final answer
    x = 161,700.58

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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.