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Finding the Fourth Proportional to 154,992.70, 232,431.45 and 61,479.10

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Solution

The fourth proportional to 154,992.70, 232,431.45 and 61,479.10 is: 92,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,992.70 : 232,431.45 = 61,479.10 : x
  2. Step 2: Convert to fraction form
    154,992.70/232,431.45 = 61,479.10/x
  3. Step 3: Cross multiply
    154,992.70x = 232,431.45 × 61,479.10
  4. Step 4: Simplify right side
    154,992.70x = 14,289,676,357.70
  5. Step 5: Solve for x
    x = 14,289,676,357.70/154,992.70
  6. Step 6: Final answer
    x = 92,195.80

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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.