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Finding the Fourth Proportional to 103,558.38, 155,339.45 and 32,479.44

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Solution

The fourth proportional to 103,558.38, 155,339.45 and 32,479.44 is: 48,719.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,558.38 : 155,339.45 = 32,479.44 : x
  2. Step 2: Convert to fraction form
    103,558.38/155,339.45 = 32,479.44/x
  3. Step 3: Cross multiply
    103,558.38x = 155,339.45 × 32,479.44
  4. Step 4: Simplify right side
    103,558.38x = 5,045,338,345.91
  5. Step 5: Solve for x
    x = 5,045,338,345.91/103,558.38
  6. Step 6: Final answer
    x = 48,719.75

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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.