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Finding the Fourth Proportional to 358,873.65, 538,310.49 and 106,134.47

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Solution

The fourth proportional to 358,873.65, 538,310.49 and 106,134.47 is: 159,201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,873.65 : 538,310.49 = 106,134.47 : x
  2. Step 2: Convert to fraction form
    358,873.65/538,310.49 = 106,134.47/x
  3. Step 3: Cross multiply
    358,873.65x = 538,310.49 × 106,134.47
  4. Step 4: Simplify right side
    358,873.65x = 57,133,295,860.04
  5. Step 5: Solve for x
    x = 57,133,295,860.04/358,873.65
  6. Step 6: Final answer
    x = 159,201.70

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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.