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Finding the Fourth Proportional to 219,522.67, 329,047.78 and 143,592.61

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Solution

The fourth proportional to 219,522.67, 329,047.78 and 143,592.61 is: 215,234.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,522.67 : 329,047.78 = 143,592.61 : x
  2. Step 2: Convert to fraction form
    219,522.67/329,047.78 = 143,592.61/x
  3. Step 3: Cross multiply
    219,522.67x = 329,047.78 × 143,592.61
  4. Step 4: Simplify right side
    219,522.67x = 47,248,829,544.91
  5. Step 5: Solve for x
    x = 47,248,829,544.91/219,522.67
  6. Step 6: Final answer
    x = 215,234.40

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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.