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Finding the Fourth Proportional to 220,308.32, 304,024.92 and 119,706.32

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Solution

The fourth proportional to 220,308.32, 304,024.92 and 119,706.32 is: 165,194.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,308.32 : 304,024.92 = 119,706.32 : x
  2. Step 2: Convert to fraction form
    220,308.32/304,024.92 = 119,706.32/x
  3. Step 3: Cross multiply
    220,308.32x = 304,024.92 × 119,706.32
  4. Step 4: Simplify right side
    220,308.32x = 36,393,704,361.49
  5. Step 5: Solve for x
    x = 36,393,704,361.49/220,308.32
  6. Step 6: Final answer
    x = 165,194.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.