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Finding the Fourth Proportional to 188,638.71, 283,038.09 and 88,796.70

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Solution

The fourth proportional to 188,638.71, 283,038.09 and 88,796.70 is: 133,232.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,638.71 : 283,038.09 = 88,796.70 : x
  2. Step 2: Convert to fraction form
    188,638.71/283,038.09 = 88,796.70/x
  3. Step 3: Cross multiply
    188,638.71x = 283,038.09 × 88,796.70
  4. Step 4: Simplify right side
    188,638.71x = 25,132,848,366.30
  5. Step 5: Solve for x
    x = 25,132,848,366.30/188,638.71
  6. Step 6: Final answer
    x = 133,232.72

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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.