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Finding the Fourth Proportional to 387,787.53, 581,676.87 and 151,296.30

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Solution

The fourth proportional to 387,787.53, 581,676.87 and 151,296.30 is: 226,942.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,787.53 : 581,676.87 = 151,296.30 : x
  2. Step 2: Convert to fraction form
    387,787.53/581,676.87 = 151,296.30/x
  3. Step 3: Cross multiply
    387,787.53x = 581,676.87 × 151,296.30
  4. Step 4: Simplify right side
    387,787.53x = 88,005,558,226.58
  5. Step 5: Solve for x
    x = 88,005,558,226.58/387,787.53
  6. Step 6: Final answer
    x = 226,942.72

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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.