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Finding the Fourth Proportional to 125,372.48, 188,059.44 and 31,878.32

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Solution

The fourth proportional to 125,372.48, 188,059.44 and 31,878.32 is: 47,817.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,372.48 : 188,059.44 = 31,878.32 : x
  2. Step 2: Convert to fraction form
    125,372.48/188,059.44 = 31,878.32/x
  3. Step 3: Cross multiply
    125,372.48x = 188,059.44 × 31,878.32
  4. Step 4: Simplify right side
    125,372.48x = 5,995,019,007.34
  5. Step 5: Solve for x
    x = 5,995,019,007.34/125,372.48
  6. Step 6: Final answer
    x = 47,817.66

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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.