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Finding the Fourth Proportional to 220,215.39, 304,023.15 and 144,982.59

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Solution

The fourth proportional to 220,215.39, 304,023.15 and 144,982.59 is: 200,158.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,215.39 : 304,023.15 = 144,982.59 : x
  2. Step 2: Convert to fraction form
    220,215.39/304,023.15 = 144,982.59/x
  3. Step 3: Cross multiply
    220,215.39x = 304,023.15 × 144,982.59
  4. Step 4: Simplify right side
    220,215.39x = 44,078,063,706.96
  5. Step 5: Solve for x
    x = 44,078,063,706.96/220,215.39
  6. Step 6: Final answer
    x = 200,158.87

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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.