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Finding the Fourth Proportional to 376,162.58, 564,286.68 and 136,389.40

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Solution

The fourth proportional to 376,162.58, 564,286.68 and 136,389.40 is: 204,599.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,162.58 : 564,286.68 = 136,389.40 : x
  2. Step 2: Convert to fraction form
    376,162.58/564,286.68 = 136,389.40/x
  3. Step 3: Cross multiply
    376,162.58x = 564,286.68 × 136,389.40
  4. Step 4: Simplify right side
    376,162.58x = 76,962,721,713.19
  5. Step 5: Solve for x
    x = 76,962,721,713.19/376,162.58
  6. Step 6: Final answer
    x = 204,599.62

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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.