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Finding the Fourth Proportional to 358,737.28, 538,103.04 and 134,154.40

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Solution

The fourth proportional to 358,737.28, 538,103.04 and 134,154.40 is: 201,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,737.28 : 538,103.04 = 134,154.40 : x
  2. Step 2: Convert to fraction form
    358,737.28/538,103.04 = 134,154.40/x
  3. Step 3: Cross multiply
    358,737.28x = 538,103.04 × 134,154.40
  4. Step 4: Simplify right side
    358,737.28x = 72,188,890,469.38
  5. Step 5: Solve for x
    x = 72,188,890,469.38/358,737.28
  6. Step 6: Final answer
    x = 201,230.52

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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.