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Finding the Fourth Proportional to 297,870.80, 446,719.80 and 108,309.20

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Solution

The fourth proportional to 297,870.80, 446,719.80 and 108,309.20 is: 162,432.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,870.80 : 446,719.80 = 108,309.20 : x
  2. Step 2: Convert to fraction form
    297,870.80/446,719.80 = 108,309.20/x
  3. Step 3: Cross multiply
    297,870.80x = 446,719.80 × 108,309.20
  4. Step 4: Simplify right side
    297,870.80x = 48,383,864,162.16
  5. Step 5: Solve for x
    x = 48,383,864,162.16/297,870.80
  6. Step 6: Final answer
    x = 162,432.38

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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.