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Finding the Fourth Proportional to 219,761.34, 329,639.49 and 53,549.34

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Solution

The fourth proportional to 219,761.34, 329,639.49 and 53,549.34 is: 80,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,761.34 : 329,639.49 = 53,549.34 : x
  2. Step 2: Convert to fraction form
    219,761.34/329,639.49 = 53,549.34/x
  3. Step 3: Cross multiply
    219,761.34x = 329,639.49 × 53,549.34
  4. Step 4: Simplify right side
    219,761.34x = 17,651,977,127.44
  5. Step 5: Solve for x
    x = 17,651,977,127.44/219,761.34
  6. Step 6: Final answer
    x = 80,323.40

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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.