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Finding the Fourth Proportional to 231,758.40, 347,637.60 and 82,167.60

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Solution

The fourth proportional to 231,758.40, 347,637.60 and 82,167.60 is: 123,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,758.40 : 347,637.60 = 82,167.60 : x
  2. Step 2: Convert to fraction form
    231,758.40/347,637.60 = 82,167.60/x
  3. Step 3: Cross multiply
    231,758.40x = 347,637.60 × 82,167.60
  4. Step 4: Simplify right side
    231,758.40x = 28,564,547,261.76
  5. Step 5: Solve for x
    x = 28,564,547,261.76/231,758.40
  6. Step 6: Final answer
    x = 123,251.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.