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Finding the Fourth Proportional to 300,117.92, 449,677.10 and 211,184.57

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Solution

The fourth proportional to 300,117.92, 449,677.10 and 211,184.57 is: 316,425.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,117.92 : 449,677.10 = 211,184.57 : x
  2. Step 2: Convert to fraction form
    300,117.92/449,677.10 = 211,184.57/x
  3. Step 3: Cross multiply
    300,117.92x = 449,677.10 × 211,184.57
  4. Step 4: Simplify right side
    300,117.92x = 94,964,866,654.50
  5. Step 5: Solve for x
    x = 94,964,866,654.50/300,117.92
  6. Step 6: Final answer
    x = 316,425.18

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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.