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Finding the Fourth Proportional to 188,032.60, 282,021.20 and 61,686.20

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Solution

The fourth proportional to 188,032.60, 282,021.20 and 61,686.20 is: 92,520.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,032.60 : 282,021.20 = 61,686.20 : x
  2. Step 2: Convert to fraction form
    188,032.60/282,021.20 = 61,686.20/x
  3. Step 3: Cross multiply
    188,032.60x = 282,021.20 × 61,686.20
  4. Step 4: Simplify right side
    188,032.60x = 17,396,816,147.44
  5. Step 5: Solve for x
    x = 17,396,816,147.44/188,032.60
  6. Step 6: Final answer
    x = 92,520.21

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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.