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Finding the Fourth Proportional to 219,761.91, 329,666.96 and 69,949.58

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Solution

The fourth proportional to 219,761.91, 329,666.96 and 69,949.58 is: 104,932.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,761.91 : 329,666.96 = 69,949.58 : x
  2. Step 2: Convert to fraction form
    219,761.91/329,666.96 = 69,949.58/x
  3. Step 3: Cross multiply
    219,761.91x = 329,666.96 × 69,949.58
  4. Step 4: Simplify right side
    219,761.91x = 23,060,063,918.42
  5. Step 5: Solve for x
    x = 23,060,063,918.42/219,761.91
  6. Step 6: Final answer
    x = 104,932.03

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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.