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Finding the Fourth Proportional to 101,511.36, 152,181.39 and 63,988.70

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Solution

The fourth proportional to 101,511.36, 152,181.39 and 63,988.70 is: 95,929.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,511.36 : 152,181.39 = 63,988.70 : x
  2. Step 2: Convert to fraction form
    101,511.36/152,181.39 = 63,988.70/x
  3. Step 3: Cross multiply
    101,511.36x = 152,181.39 × 63,988.70
  4. Step 4: Simplify right side
    101,511.36x = 9,737,889,310.29
  5. Step 5: Solve for x
    x = 9,737,889,310.29/101,511.36
  6. Step 6: Final answer
    x = 95,929.06

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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.