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Finding the Fourth Proportional to 188,316.40, 282,474.78 and 132,406.60

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Solution

The fourth proportional to 188,316.40, 282,474.78 and 132,406.60 is: 198,610.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,316.40 : 282,474.78 = 132,406.60 : x
  2. Step 2: Convert to fraction form
    188,316.40/282,474.78 = 132,406.60/x
  3. Step 3: Cross multiply
    188,316.40x = 282,474.78 × 132,406.60
  4. Step 4: Simplify right side
    188,316.40x = 37,401,525,205.55
  5. Step 5: Solve for x
    x = 37,401,525,205.55/188,316.40
  6. Step 6: Final answer
    x = 198,610.03

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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.