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Finding the Fourth Proportional to 276,956.85, 415,564.45 and 108,433.46

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Solution

The fourth proportional to 276,956.85, 415,564.45 and 108,433.46 is: 162,700.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,956.85 : 415,564.45 = 108,433.46 : x
  2. Step 2: Convert to fraction form
    276,956.85/415,564.45 = 108,433.46/x
  3. Step 3: Cross multiply
    276,956.85x = 415,564.45 × 108,433.46
  4. Step 4: Simplify right side
    276,956.85x = 45,061,091,934.32
  5. Step 5: Solve for x
    x = 45,061,091,934.32/276,956.85
  6. Step 6: Final answer
    x = 162,700.77

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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.