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Finding the Fourth Proportional to 154,225.20, 231,337.80 and 49,054.80

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Solution

The fourth proportional to 154,225.20, 231,337.80 and 49,054.80 is: 73,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,225.20 : 231,337.80 = 49,054.80 : x
  2. Step 2: Convert to fraction form
    154,225.20/231,337.80 = 49,054.80/x
  3. Step 3: Cross multiply
    154,225.20x = 231,337.80 × 49,054.80
  4. Step 4: Simplify right side
    154,225.20x = 11,348,229,511.44
  5. Step 5: Solve for x
    x = 11,348,229,511.44/154,225.20
  6. Step 6: Final answer
    x = 73,582.20

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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.