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Finding the Fourth Proportional to 154,574.55, 231,855.75 and 54,730.71

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Solution

The fourth proportional to 154,574.55, 231,855.75 and 54,730.71 is: 82,093.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,574.55 : 231,855.75 = 54,730.71 : x
  2. Step 2: Convert to fraction form
    154,574.55/231,855.75 = 54,730.71/x
  3. Step 3: Cross multiply
    154,574.55x = 231,855.75 × 54,730.71
  4. Step 4: Simplify right side
    154,574.55x = 12,689,629,815.08
  5. Step 5: Solve for x
    x = 12,689,629,815.08/154,574.55
  6. Step 6: Final answer
    x = 82,093.91

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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.