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Finding the Fourth Proportional to 358,732.96, 538,130.39 and 92,491.22

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Solution

The fourth proportional to 358,732.96, 538,130.39 and 92,491.22 is: 138,744.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,732.96 : 538,130.39 = 92,491.22 : x
  2. Step 2: Convert to fraction form
    358,732.96/538,130.39 = 92,491.22/x
  3. Step 3: Cross multiply
    358,732.96x = 538,130.39 × 92,491.22
  4. Step 4: Simplify right side
    358,732.96x = 49,772,337,173.05
  5. Step 5: Solve for x
    x = 49,772,337,173.05/358,732.96
  6. Step 6: Final answer
    x = 138,744.81

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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.