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Finding the Fourth Proportional to 554,940.81, 832,411.62 and 134,217.09

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Solution

The fourth proportional to 554,940.81, 832,411.62 and 134,217.09 is: 201,325.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,940.81 : 832,411.62 = 134,217.09 : x
  2. Step 2: Convert to fraction form
    554,940.81/832,411.62 = 134,217.09/x
  3. Step 3: Cross multiply
    554,940.81x = 832,411.62 × 134,217.09
  4. Step 4: Simplify right side
    554,940.81x = 111,723,865,318.59
  5. Step 5: Solve for x
    x = 111,723,865,318.59/554,940.81
  6. Step 6: Final answer
    x = 201,325.73

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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.