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Finding the Fourth Proportional to 354,066.50, 530,721.57 and 201,936.04

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Solution

The fourth proportional to 354,066.50, 530,721.57 and 201,936.04 is: 302,688.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,066.50 : 530,721.57 = 201,936.04 : x
  2. Step 2: Convert to fraction form
    354,066.50/530,721.57 = 201,936.04/x
  3. Step 3: Cross multiply
    354,066.50x = 530,721.57 × 201,936.04
  4. Step 4: Simplify right side
    354,066.50x = 107,171,813,841.42
  5. Step 5: Solve for x
    x = 107,171,813,841.42/354,066.50
  6. Step 6: Final answer
    x = 302,688.38

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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.