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Finding the Fourth Proportional to 276,690.60, 415,035.90 and 230,034.60

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Solution

The fourth proportional to 276,690.60, 415,035.90 and 230,034.60 is: 345,051.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,690.60 : 415,035.90 = 230,034.60 : x
  2. Step 2: Convert to fraction form
    276,690.60/415,035.90 = 230,034.60/x
  3. Step 3: Cross multiply
    276,690.60x = 415,035.90 × 230,034.60
  4. Step 4: Simplify right side
    276,690.60x = 95,472,617,242.14
  5. Step 5: Solve for x
    x = 95,472,617,242.14/276,690.60
  6. Step 6: Final answer
    x = 345,051.90

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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.