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Finding the Fourth Proportional to 219,505.28, 329,220.66 and 61,696.64

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Solution

The fourth proportional to 219,505.28, 329,220.66 and 61,696.64 is: 92,534.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,505.28 : 329,220.66 = 61,696.64 : x
  2. Step 2: Convert to fraction form
    219,505.28/329,220.66 = 61,696.64/x
  3. Step 3: Cross multiply
    219,505.28x = 329,220.66 × 61,696.64
  4. Step 4: Simplify right side
    219,505.28x = 20,311,808,540.58
  5. Step 5: Solve for x
    x = 20,311,808,540.58/219,505.28
  6. Step 6: Final answer
    x = 92,534.49

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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.