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Finding the Fourth Proportional to 188,732.60, 283,098.90 and 76,412.60

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Solution

The fourth proportional to 188,732.60, 283,098.90 and 76,412.60 is: 114,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,732.60 : 283,098.90 = 76,412.60 : x
  2. Step 2: Convert to fraction form
    188,732.60/283,098.90 = 76,412.60/x
  3. Step 3: Cross multiply
    188,732.60x = 283,098.90 × 76,412.60
  4. Step 4: Simplify right side
    188,732.60x = 21,632,323,006.14
  5. Step 5: Solve for x
    x = 21,632,323,006.14/188,732.60
  6. Step 6: Final answer
    x = 114,618.90

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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.