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Finding the Fourth Proportional to 219,592.35, 329,137.56 and 99,740.70

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Solution

The fourth proportional to 219,592.35, 329,137.56 and 99,740.70 is: 149,497.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,592.35 : 329,137.56 = 99,740.70 : x
  2. Step 2: Convert to fraction form
    219,592.35/329,137.56 = 99,740.70/x
  3. Step 3: Cross multiply
    219,592.35x = 329,137.56 × 99,740.70
  4. Step 4: Simplify right side
    219,592.35x = 32,828,410,630.69
  5. Step 5: Solve for x
    x = 32,828,410,630.69/219,592.35
  6. Step 6: Final answer
    x = 149,497.06

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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.