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Finding the Fourth Proportional to 146,597,672.40, 219,560,585.40 and 143,238,440.40

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Solution

The fourth proportional to 146,597,672.40, 219,560,585.40 and 143,238,440.40 is: 214,529,434.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,597,672.40 : 219,560,585.40 = 143,238,440.40 : x
  2. Step 2: Convert to fraction form
    146,597,672.40/219,560,585.40 = 143,238,440.40/x
  3. Step 3: Cross multiply
    146,597,672.40x = 219,560,585.40 × 143,238,440.40
  4. Step 4: Simplify right side
    146,597,672.40x = 31,449,515,826,007,012
  5. Step 5: Solve for x
    x = 31,449,515,826,007,012/146,597,672.40
  6. Step 6: Final answer
    x = 214,529,434.96

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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.