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Finding the Fourth Proportional to 219,653.96, 329,591.85 and 99,634.43

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Solution

The fourth proportional to 219,653.96, 329,591.85 and 99,634.43 is: 149,501.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,653.96 : 329,591.85 = 99,634.43 : x
  2. Step 2: Convert to fraction form
    219,653.96/329,591.85 = 99,634.43/x
  3. Step 3: Cross multiply
    219,653.96x = 329,591.85 × 99,634.43
  4. Step 4: Simplify right side
    219,653.96x = 32,838,693,961.26
  5. Step 5: Solve for x
    x = 32,838,693,961.26/219,653.96
  6. Step 6: Final answer
    x = 149,501.94

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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.