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Finding the Fourth Proportional to 267,807.60, 401,711.40 and 238,777.20

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Solution

The fourth proportional to 267,807.60, 401,711.40 and 238,777.20 is: 358,165.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,807.60 : 401,711.40 = 238,777.20 : x
  2. Step 2: Convert to fraction form
    267,807.60/401,711.40 = 238,777.20/x
  3. Step 3: Cross multiply
    267,807.60x = 401,711.40 × 238,777.20
  4. Step 4: Simplify right side
    267,807.60x = 95,919,523,300.08
  5. Step 5: Solve for x
    x = 95,919,523,300.08/267,807.60
  6. Step 6: Final answer
    x = 358,165.80

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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.