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Finding the Fourth Proportional to 259,867.88, 358,617.67 and 140,635.88

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Solution

The fourth proportional to 259,867.88, 358,617.67 and 140,635.88 is: 194,077.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,867.88 : 358,617.67 = 140,635.88 : x
  2. Step 2: Convert to fraction form
    259,867.88/358,617.67 = 140,635.88/x
  3. Step 3: Cross multiply
    259,867.88x = 358,617.67 × 140,635.88
  4. Step 4: Simplify right side
    259,867.88x = 50,434,509,459.32
  5. Step 5: Solve for x
    x = 50,434,509,459.32/259,867.88
  6. Step 6: Final answer
    x = 194,077.51

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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.