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Finding the Fourth Proportional to 131,662.49, 197,447.03 and 47,400.03

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Solution

The fourth proportional to 131,662.49, 197,447.03 and 47,400.03 is: 71,083.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,662.49 : 197,447.03 = 47,400.03 : x
  2. Step 2: Convert to fraction form
    131,662.49/197,447.03 = 47,400.03/x
  3. Step 3: Cross multiply
    131,662.49x = 197,447.03 × 47,400.03
  4. Step 4: Simplify right side
    131,662.49x = 9,358,995,145.41
  5. Step 5: Solve for x
    x = 9,358,995,145.41/131,662.49
  6. Step 6: Final answer
    x = 71,083.23

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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.