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Finding the Fourth Proportional to 297,980.50, 447,251.64 and 108,623.88

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Solution

The fourth proportional to 297,980.50, 447,251.64 and 108,623.88 is: 163,038.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,980.50 : 447,251.64 = 108,623.88 : x
  2. Step 2: Convert to fraction form
    297,980.50/447,251.64 = 108,623.88/x
  3. Step 3: Cross multiply
    297,980.50x = 447,251.64 × 108,623.88
  4. Step 4: Simplify right side
    297,980.50x = 48,582,208,473.16
  5. Step 5: Solve for x
    x = 48,582,208,473.16/297,980.50
  6. Step 6: Final answer
    x = 163,038.21

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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.