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Finding the Fourth Proportional to 234,498.69, 351,745.45 and 57,005.87

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Solution

The fourth proportional to 234,498.69, 351,745.45 and 57,005.87 is: 85,508.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,498.69 : 351,745.45 = 57,005.87 : x
  2. Step 2: Convert to fraction form
    234,498.69/351,745.45 = 57,005.87/x
  3. Step 3: Cross multiply
    234,498.69x = 351,745.45 × 57,005.87
  4. Step 4: Simplify right side
    234,498.69x = 20,051,553,494.55
  5. Step 5: Solve for x
    x = 20,051,553,494.55/234,498.69
  6. Step 6: Final answer
    x = 85,508.17

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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.