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Finding the Fourth Proportional to 331,580.40, 497,370.60 and 109,964.40

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Solution

The fourth proportional to 331,580.40, 497,370.60 and 109,964.40 is: 164,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,580.40 : 497,370.60 = 109,964.40 : x
  2. Step 2: Convert to fraction form
    331,580.40/497,370.60 = 109,964.40/x
  3. Step 3: Cross multiply
    331,580.40x = 497,370.60 × 109,964.40
  4. Step 4: Simplify right side
    331,580.40x = 54,693,059,606.64
  5. Step 5: Solve for x
    x = 54,693,059,606.64/331,580.40
  6. Step 6: Final answer
    x = 164,946.60

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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.