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Finding the Fourth Proportional to 188,047.20, 282,135.60 and 82,941.60

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Solution

The fourth proportional to 188,047.20, 282,135.60 and 82,941.60 is: 124,440.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,047.20 : 282,135.60 = 82,941.60 : x
  2. Step 2: Convert to fraction form
    188,047.20/282,135.60 = 82,941.60/x
  3. Step 3: Cross multiply
    188,047.20x = 282,135.60 × 82,941.60
  4. Step 4: Simplify right side
    188,047.20x = 23,400,778,080.96
  5. Step 5: Solve for x
    x = 23,400,778,080.96/188,047.20
  6. Step 6: Final answer
    x = 124,440.98

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1.5x scale

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.