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Finding the Fourth Proportional to 188,041.20, 282,126.60 and 82,935.60

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Solution

The fourth proportional to 188,041.20, 282,126.60 and 82,935.60 is: 124,431.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,041.20 : 282,126.60 = 82,935.60 : x
  2. Step 2: Convert to fraction form
    188,041.20/282,126.60 = 82,935.60/x
  3. Step 3: Cross multiply
    188,041.20x = 282,126.60 × 82,935.60
  4. Step 4: Simplify right side
    188,041.20x = 23,398,338,846.96
  5. Step 5: Solve for x
    x = 23,398,338,846.96/188,041.20
  6. Step 6: Final answer
    x = 124,431.98

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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.