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Finding the Fourth Proportional to 188,903.40, 283,223.58 and 83,665.32

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Solution

The fourth proportional to 188,903.40, 283,223.58 and 83,665.32 is: 125,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,903.40 : 283,223.58 = 83,665.32 : x
  2. Step 2: Convert to fraction form
    188,903.40/283,223.58 = 83,665.32/x
  3. Step 3: Cross multiply
    188,903.40x = 283,223.58 × 83,665.32
  4. Step 4: Simplify right side
    188,903.40x = 23,695,991,452.25
  5. Step 5: Solve for x
    x = 23,695,991,452.25/188,903.40
  6. Step 6: Final answer
    x = 125,439.73

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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.