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Finding the Fourth Proportional to 120,092.86, 180,252.15 and 60,970.96

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Solution

The fourth proportional to 120,092.86, 180,252.15 and 60,970.96 is: 91,513.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,092.86 : 180,252.15 = 60,970.96 : x
  2. Step 2: Convert to fraction form
    120,092.86/180,252.15 = 60,970.96/x
  3. Step 3: Cross multiply
    120,092.86x = 180,252.15 × 60,970.96
  4. Step 4: Simplify right side
    120,092.86x = 10,990,146,627.56
  5. Step 5: Solve for x
    x = 10,990,146,627.56/120,092.86
  6. Step 6: Final answer
    x = 91,513.74

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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.