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Finding the Fourth Proportional to 219,950.20, 303,531.78 and 119,348.20

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Solution

The fourth proportional to 219,950.20, 303,531.78 and 119,348.20 is: 164,700.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,950.20 : 303,531.78 = 119,348.20 : x
  2. Step 2: Convert to fraction form
    219,950.20/303,531.78 = 119,348.20/x
  3. Step 3: Cross multiply
    219,950.20x = 303,531.78 × 119,348.20
  4. Step 4: Simplify right side
    219,950.20x = 36,225,971,585.80
  5. Step 5: Solve for x
    x = 36,225,971,585.80/219,950.20
  6. Step 6: Final answer
    x = 164,700.79

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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.