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Finding the Fourth Proportional to 154,617.80, 231,913.74 and 49,408.52

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Solution

The fourth proportional to 154,617.80, 231,913.74 and 49,408.52 is: 74,108.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,617.80 : 231,913.74 = 49,408.52 : x
  2. Step 2: Convert to fraction form
    154,617.80/231,913.74 = 49,408.52/x
  3. Step 3: Cross multiply
    154,617.80x = 231,913.74 × 49,408.52
  4. Step 4: Simplify right side
    154,617.80x = 11,458,514,661.06
  5. Step 5: Solve for x
    x = 11,458,514,661.06/154,617.80
  6. Step 6: Final answer
    x = 74,108.64

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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.