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Finding the Fourth Proportional to 188,681.80, 283,022.70 and 83,446.60

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Solution

The fourth proportional to 188,681.80, 283,022.70 and 83,446.60 is: 125,169.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,681.80 : 283,022.70 = 83,446.60 : x
  2. Step 2: Convert to fraction form
    188,681.80/283,022.70 = 83,446.60/x
  3. Step 3: Cross multiply
    188,681.80x = 283,022.70 × 83,446.60
  4. Step 4: Simplify right side
    188,681.80x = 23,617,282,037.82
  5. Step 5: Solve for x
    x = 23,617,282,037.82/188,681.80
  6. Step 6: Final answer
    x = 125,169.90

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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.