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Finding the Fourth Proportional to 358,855.53, 538,397.60 and 106,137.56

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Solution

The fourth proportional to 358,855.53, 538,397.60 and 106,137.56 is: 159,240.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,855.53 : 538,397.60 = 106,137.56 : x
  2. Step 2: Convert to fraction form
    358,855.53/538,397.60 = 106,137.56/x
  3. Step 3: Cross multiply
    358,855.53x = 538,397.60 × 106,137.56
  4. Step 4: Simplify right side
    358,855.53x = 57,144,204,351.18
  5. Step 5: Solve for x
    x = 57,144,204,351.18/358,855.53
  6. Step 6: Final answer
    x = 159,240.14

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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.