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Finding the Fourth Proportional to 219,592.82, 329,435.76 and 84,660.32

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Solution

The fourth proportional to 219,592.82, 329,435.76 and 84,660.32 is: 127,008.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,592.82 : 329,435.76 = 84,660.32 : x
  2. Step 2: Convert to fraction form
    219,592.82/329,435.76 = 84,660.32/x
  3. Step 3: Cross multiply
    219,592.82x = 329,435.76 × 84,660.32
  4. Step 4: Simplify right side
    219,592.82x = 27,890,136,861.04
  5. Step 5: Solve for x
    x = 27,890,136,861.04/219,592.82
  6. Step 6: Final answer
    x = 127,008.42

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1.5x scale

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.