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Finding the Fourth Proportional to 331,314.90, 496,972.35 and 109,698.90

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Solution

The fourth proportional to 331,314.90, 496,972.35 and 109,698.90 is: 164,548.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,314.90 : 496,972.35 = 109,698.90 : x
  2. Step 2: Convert to fraction form
    331,314.90/496,972.35 = 109,698.90/x
  3. Step 3: Cross multiply
    331,314.90x = 496,972.35 × 109,698.90
  4. Step 4: Simplify right side
    331,314.90x = 54,517,320,125.42
  5. Step 5: Solve for x
    x = 54,517,320,125.42/331,314.90
  6. Step 6: Final answer
    x = 164,548.35

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Similar ratio
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1.5x scale

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.