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Finding the Fourth Proportional to 122,396.80, 183,485.86 and 59,181.56

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Solution

The fourth proportional to 122,396.80, 183,485.86 and 59,181.56 is: 88,719.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,396.80 : 183,485.86 = 59,181.56 : x
  2. Step 2: Convert to fraction form
    122,396.80/183,485.86 = 59,181.56/x
  3. Step 3: Cross multiply
    122,396.80x = 183,485.86 × 59,181.56
  4. Step 4: Simplify right side
    122,396.80x = 10,858,979,432.74
  5. Step 5: Solve for x
    x = 10,858,979,432.74/122,396.80
  6. Step 6: Final answer
    x = 88,719.47

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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.