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Finding the Fourth Proportional to 331,026.40, 496,539.60 and 109,410.40

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Solution

The fourth proportional to 331,026.40, 496,539.60 and 109,410.40 is: 164,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,026.40 : 496,539.60 = 109,410.40 : x
  2. Step 2: Convert to fraction form
    331,026.40/496,539.60 = 109,410.40/x
  3. Step 3: Cross multiply
    331,026.40x = 496,539.60 × 109,410.40
  4. Step 4: Simplify right side
    331,026.40x = 54,326,596,251.84
  5. Step 5: Solve for x
    x = 54,326,596,251.84/331,026.40
  6. Step 6: Final answer
    x = 164,115.60

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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.