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Finding the Fourth Proportional to 331,272.60, 496,908.90 and 109,656.60

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Solution

The fourth proportional to 331,272.60, 496,908.90 and 109,656.60 is: 164,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,272.60 : 496,908.90 = 109,656.60 : x
  2. Step 2: Convert to fraction form
    331,272.60/496,908.90 = 109,656.60/x
  3. Step 3: Cross multiply
    331,272.60x = 496,908.90 × 109,656.60
  4. Step 4: Simplify right side
    331,272.60x = 54,489,340,483.74
  5. Step 5: Solve for x
    x = 54,489,340,483.74/331,272.60
  6. Step 6: Final answer
    x = 164,484.90

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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.