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Finding the Fourth Proportional to 267,957.64, 401,630.70 and 107,931.15

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Solution

The fourth proportional to 267,957.64, 401,630.70 and 107,931.15 is: 161,773.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,957.64 : 401,630.70 = 107,931.15 : x
  2. Step 2: Convert to fraction form
    267,957.64/401,630.70 = 107,931.15/x
  3. Step 3: Cross multiply
    267,957.64x = 401,630.70 × 107,931.15
  4. Step 4: Simplify right side
    267,957.64x = 43,348,461,318.15
  5. Step 5: Solve for x
    x = 43,348,461,318.15/267,957.64
  6. Step 6: Final answer
    x = 161,773.56

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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.