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Finding the Fourth Proportional to 154,418.80, 231,606.60 and 49,248.40

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Solution

The fourth proportional to 154,418.80, 231,606.60 and 49,248.40 is: 73,865.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,418.80 : 231,606.60 = 49,248.40 : x
  2. Step 2: Convert to fraction form
    154,418.80/231,606.60 = 49,248.40/x
  3. Step 3: Cross multiply
    154,418.80x = 231,606.60 × 49,248.40
  4. Step 4: Simplify right side
    154,418.80x = 11,406,254,479.44
  5. Step 5: Solve for x
    x = 11,406,254,479.44/154,418.80
  6. Step 6: Final answer
    x = 73,865.71

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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.