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Finding the Fourth Proportional to 364,638.88, 547,016.64 and 154,278.64

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Solution

The fourth proportional to 364,638.88, 547,016.64 and 154,278.64 is: 231,442.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,638.88 : 547,016.64 = 154,278.64 : x
  2. Step 2: Convert to fraction form
    364,638.88/547,016.64 = 154,278.64/x
  3. Step 3: Cross multiply
    364,638.88x = 547,016.64 × 154,278.64
  4. Step 4: Simplify right side
    364,638.88x = 84,392,983,276.57
  5. Step 5: Solve for x
    x = 84,392,983,276.57/364,638.88
  6. Step 6: Final answer
    x = 231,442.64

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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.