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Finding the Fourth Proportional to 154,060.80, 231,069.60 and 48,890.40

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Solution

The fourth proportional to 154,060.80, 231,069.60 and 48,890.40 is: 73,328.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,060.80 : 231,069.60 = 48,890.40 : x
  2. Step 2: Convert to fraction form
    154,060.80/231,069.60 = 48,890.40/x
  3. Step 3: Cross multiply
    154,060.80x = 231,069.60 × 48,890.40
  4. Step 4: Simplify right side
    154,060.80x = 11,297,085,171.84
  5. Step 5: Solve for x
    x = 11,297,085,171.84/154,060.80
  6. Step 6: Final answer
    x = 73,328.75

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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.