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Finding the Fourth Proportional to 103,775.20, 155,662.80 and 33,653.60

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Solution

The fourth proportional to 103,775.20, 155,662.80 and 33,653.60 is: 50,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,775.20 : 155,662.80 = 33,653.60 : x
  2. Step 2: Convert to fraction form
    103,775.20/155,662.80 = 33,653.60/x
  3. Step 3: Cross multiply
    103,775.20x = 155,662.80 × 33,653.60
  4. Step 4: Simplify right side
    103,775.20x = 5,238,613,606.08
  5. Step 5: Solve for x
    x = 5,238,613,606.08/103,775.20
  6. Step 6: Final answer
    x = 50,480.40

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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.