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Finding the Fourth Proportional to 123,410.60, 185,115.90 and 29,916.35

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Solution

The fourth proportional to 123,410.60, 185,115.90 and 29,916.35 is: 44,874.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,410.60 : 185,115.90 = 29,916.35 : x
  2. Step 2: Convert to fraction form
    123,410.60/185,115.90 = 29,916.35/x
  3. Step 3: Cross multiply
    123,410.60x = 185,115.90 × 29,916.35
  4. Step 4: Simplify right side
    123,410.60x = 5,537,992,054.97
  5. Step 5: Solve for x
    x = 5,537,992,054.97/123,410.60
  6. Step 6: Final answer
    x = 44,874.53

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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.