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Finding the Fourth Proportional to 76,205.78, 114,266.98 and 60,511.62

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Solution

The fourth proportional to 76,205.78, 114,266.98 and 60,511.62 is: 90,734.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,205.78 : 114,266.98 = 60,511.62 : x
  2. Step 2: Convert to fraction form
    76,205.78/114,266.98 = 60,511.62/x
  3. Step 3: Cross multiply
    76,205.78x = 114,266.98 × 60,511.62
  4. Step 4: Simplify right side
    76,205.78x = 6,914,480,072.31
  5. Step 5: Solve for x
    x = 6,914,480,072.31/76,205.78
  6. Step 6: Final answer
    x = 90,734.33

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1.5x scale

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.