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Finding the Fourth Proportional to 238,568.52, 357,896.58 and 78,653.88

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Solution

The fourth proportional to 238,568.52, 357,896.58 and 78,653.88 is: 117,995.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,568.52 : 357,896.58 = 78,653.88 : x
  2. Step 2: Convert to fraction form
    238,568.52/357,896.58 = 78,653.88/x
  3. Step 3: Cross multiply
    238,568.52x = 357,896.58 × 78,653.88
  4. Step 4: Simplify right side
    238,568.52x = 28,149,954,655.73
  5. Step 5: Solve for x
    x = 28,149,954,655.73/238,568.52
  6. Step 6: Final answer
    x = 117,995.26

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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.