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Finding the Fourth Proportional to 123,355.74, 185,045.22 and 34,608.90

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Solution

The fourth proportional to 123,355.74, 185,045.22 and 34,608.90 is: 51,916.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,355.74 : 185,045.22 = 34,608.90 : x
  2. Step 2: Convert to fraction form
    123,355.74/185,045.22 = 34,608.90/x
  3. Step 3: Cross multiply
    123,355.74x = 185,045.22 × 34,608.90
  4. Step 4: Simplify right side
    123,355.74x = 6,404,211,514.46
  5. Step 5: Solve for x
    x = 6,404,211,514.46/123,355.74
  6. Step 6: Final answer
    x = 51,916.61

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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.