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Finding the Fourth Proportional to 296,951.46, 445,422.56 and 72,311.52

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Solution

The fourth proportional to 296,951.46, 445,422.56 and 72,311.52 is: 108,466.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,951.46 : 445,422.56 = 72,311.52 : x
  2. Step 2: Convert to fraction form
    296,951.46/445,422.56 = 72,311.52/x
  3. Step 3: Cross multiply
    296,951.46x = 445,422.56 × 72,311.52
  4. Step 4: Simplify right side
    296,951.46x = 32,209,180,866.34
  5. Step 5: Solve for x
    x = 32,209,180,866.34/296,951.46
  6. Step 6: Final answer
    x = 108,466.15

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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.