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Finding the Fourth Proportional to 358,956.48, 538,308.72 and 106,169.52

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Solution

The fourth proportional to 358,956.48, 538,308.72 and 106,169.52 is: 159,217.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,956.48 : 538,308.72 = 106,169.52 : x
  2. Step 2: Convert to fraction form
    358,956.48/538,308.72 = 106,169.52/x
  3. Step 3: Cross multiply
    358,956.48x = 538,308.72 × 106,169.52
  4. Step 4: Simplify right side
    358,956.48x = 57,151,978,414.21
  5. Step 5: Solve for x
    x = 57,151,978,414.21/358,956.48
  6. Step 6: Final answer
    x = 159,217.01

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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.