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Finding the Fourth Proportional to 203,507.17, 280,857.15 and 112,892.33

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Solution

The fourth proportional to 203,507.17, 280,857.15 and 112,892.33 is: 155,800.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,507.17 : 280,857.15 = 112,892.33 : x
  2. Step 2: Convert to fraction form
    203,507.17/280,857.15 = 112,892.33/x
  3. Step 3: Cross multiply
    203,507.17x = 280,857.15 × 112,892.33
  4. Step 4: Simplify right side
    203,507.17x = 31,706,618,445.29
  5. Step 5: Solve for x
    x = 31,706,618,445.29/203,507.17
  6. Step 6: Final answer
    x = 155,800.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.