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Finding the Fourth Proportional to 267,516.70, 401,080.65 and 109,663.90

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Solution

The fourth proportional to 267,516.70, 401,080.65 and 109,663.90 is: 164,416.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,516.70 : 401,080.65 = 109,663.90 : x
  2. Step 2: Convert to fraction form
    267,516.70/401,080.65 = 109,663.90/x
  3. Step 3: Cross multiply
    267,516.70x = 401,080.65 × 109,663.90
  4. Step 4: Simplify right side
    267,516.70x = 43,984,068,293.54
  5. Step 5: Solve for x
    x = 43,984,068,293.54/267,516.70
  6. Step 6: Final answer
    x = 164,416.16

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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.